I tried searching for images about this ATM, doesn't seem to be the case. For example, you can find something like this[1]. Not really familiar with types of Bitcoin ATMs but it doesn't seem like the best choice for security. There seems to be an additional part other than the orange box, does the cash go there or is it just a decoration?

From the article you linked, it doesn't seem like the police have a lot to go on. Fortunately, no cash is stolen. It is kinda wild that the theft happen so close to when the company takes the cash from the machine. It is understandable that they think this is an inside job.

[1] https://coinatmradar.com/bitcoin_atm/45721/bitcoin-atm-general-bytes-rochester-smoke-shop/

The robbers weren't looking for bitcoins they were looking for cash and they got it why are they upset?
 It's impossible for an atm machine to have bitcoins because bitcoins are not in physical form, this is very funny, maybe the robbers think that bitcoins are shaped like gold bars.

This is actually a use case for studying and implementing new features in the BATM. For example, acceptance of only digital means of paying and thus completing diminishing the use of physical fiat bank notes. This is positively good for saying that we are in the digital workspace and fiat is almost out of the way. Secondly even if the bitcoin ATM gets robbed next time, they wont be able to do anything about it except have it crushed and thrown away somewhere. Or may be just have cool machine at their home to be used as flasher during home parties. Lolz.

BATM should really follow such strategies. Only ATM cards, NFC payments or wallet to wallet transfer only. It can really save up hassle of collecting those notes, securing them and having additional anti theft security around it.

True. People always overlook $5 wrench attacks thinking "meh, chances are it won't happen to me".

Unfortunately for Jameson Lopp though — he's a public Bitcoin personality so people would know about him and his bitcoin forever. All he can do is to beef up his personal security.

In the fact the robbery can't rob any amount of bitcoin from Bitcoin ATM but their purpose is get some money from it because Bitcoin ATM allows people to purchase bitcoin using cash, so they think can get cash out by stealing bitcoin atm machine.

This same case was happened in the Barcelona in the past 2021 ago. There were at least 158 bitcoin ATM machine surround the country at that time based to data from Bitvoin ATM Radar that can be tracked by location. that was such a high number in Europe. Therefore, it may be one of the reason that interest Robbery willing to steal bitcoin ATM.

Reference :
Thieves rip bitcoin ATM from Barcelona crypto-store

The average thief does not have a clue what Bitcoin is, they might think it is actual physical coins or they might think those ATMs function in the same way that Fiat ATMs function. So for them it is a little box full of cash.... 

I am actually surprised that this is not happening a lot more, which might show that the robbers are getting educated about Bitcoin now, so we can actually use this as a positive marketing angle for Bitcoin ATM use. 

Damn, I'd love to see someone who thinks that BTC is a physical coin, lol. But I don't think ATMs are a good way to buy Bitcoin anyway, I don't get the point of them when you can buy it more easily P2P or on an exchange.

This is either one of the two;
1. Reason  you stated above why they tried to robbed it or,

2.They just think it's a normal ATM.

Even if we say that they are aware that it is Bitcoin, the fact that people are trying to purchase something using currency also made them curious and thought "let us try earning a quick buck"  

They are a bunch of robbers who are learning to steal, about what percentage of people on this earth do not know that bitcoin does not have a physical form and another percentage of these robbers think there is cash in the machine. Unfortunately, for the ridiculous actions they did and in the end had to deal with the police. Laugh out loud.

If you want to see cases of robbery against bitcoin, I remember one husband and wife couple Lichtenstein and Morgan, they managed to hack Bitfinex and steal as many as 119,754 Bitcoins and even though in the end they were caught by the US Department of Justice.

Why should anyone even think in the dumb pattern of thinking,  this is total rubbish because trying to robe a Bitcoin ATM is something that seems unrealistic and yields zero results
Not as if Bitcoin has physical representation that could be carried away, so dragging that ATM away won't solve anything.