If someone always reads TOS, they are the cheaters, in fact they are the most informed.
The issue here is simple, you must be aware find the "conditions of service," etc. and should be read. Only someone who is a novice can put money in a casino or win a prize and then not withdraw it, for something as simple as being prohibited. And then whose fault is it?
In the first instance the casino will freeze the money and then the ban. You claim and it is so simple that in the conditions of service that you accept when registering, the countries that are prohibited appear.
-In the first instance, check, read and look for that information.
-If you are lazy, look for a casino with good support and ask. If it does not offer you this, do not waste time, as I always say the best support solves your concerns, simple questions and general any "timely" and "inopportune" question that occurs to you.
Think about it, if they are not able to answer your questions, how will they with real problems.
There is a casino on that list that does not block the country, although it appears restricted, the reason is that some casinos know that many users today use VPN or browsers and change the country randomly, so let's say you connect with browser, VPN, proxy, Ghost, etc. so is assigned to you "x country" even if the country is restricted, you are accepted, technically accepts you, but Yes/not legally (terms of service).
Actually some casinos also assume the opposite, that you are from a permitted country but you are using a VPN and they assign you a restricted country. So the conditions of service prevail and not the techniques.
Is the above okay? technically and legally "see site conditions," if and only if for example the site supports the use of VPN, if it does not support it and it is written, you should disconnect and register without VPN or whatever you use. If nothing is written, this means that the good faith of the users prevails.
That is to say, in practice what you do is of great help, because it saves users discomfort for those who do not understand, but the technicality of the "legal" registration for some casinos is in its conditions and the user is governed by them, It is not the casino's obligation to "have" to prohibit you, so you should know that it is wrong to do so.
The presumption of good faith between the parties is governed by the contract that is accepted when registering.
In conclusion, what they write in the conditions of service strictly prevails.