In addition to what you said I think the website diverse it users base and allows for brand exposure plus the easy registration process was straightforward to me when I was registering and also I noticed the it aslo offers user-friendly and some juicy bouse to it users, I think i had a free accessibility without making use of VPN and I think it requires many user to be convenient and free while having access to the platform.
If there is no geolocation restriction, there is no need of using VPN for account registration. Even you can do it to abuse their ToS, for example, it is still a very risky practice because sooner or later, they will know your true identity as well as IP addresses. It's when your account will have big trouble with possible consequences like account termination and fund freeze.
If any platform has restriction on IP addresses, and you can not access it normally, let's move on to other sites. Don't try to use VPN and get problems later, it does not make sense.