not really

the whole concept of bitcoin was not to lock funds into addresses where someone else has the private keys/permission to move funds. your suppose to keep funds in your own private key accessed addresses away from third party services.

but if you are going to put funds into exchanges then thos exchanges should atleast have banking licences and insurances to look after the funds and repay users of losses should those third parties 'get hacked'

really funny part is that coinbase is just saying it does cold wallets for a high % of its holdings and has hot wallets for smaller reserves... stupid part is, this is something i was telling exchanges to do as far back as 2012 when i first got involved in. and now coinbase is preaching it like it some big seurity feature.
exchanges using cold wallets should have ALWAYS bn minimum standard featur. nothing special.. just the minimal requirement.
as for the need of a hot wallet, even thats not needed if they were smart enough..

all in all i dont see much thats unique and special thats ben highlightd in that article about coinbase. apart from theem chest thumping like alpha male gorilla's that they are taking in larger institution amounts. so to me its just a publicity stunt

what coinbase should be doing is showing transparency about its FIAT.. something institutions really care about. and then as a separate thing. advice USERS how to SELF protect their crypto by taking it out from exchanges.