If taxes was the only thing against the US jurisdiction then I am sure that many casinos will still open their doors there, what happens is that the US regulations are so insane that casinos choose to avoid it completely and in the case of fiat casinos there are some fiat casinos that in their desire to avoid the US laws they avoid accepting any US clients at all as they do not want to bother to fill reports to the US government, but still I believe this is a step forward in the right direction.
I believe Silberman was right because taxes issue want not the main reason why some casinoes restricted the US resident/citizen and the last time I checked the UK seems to have high tax rate than the US but the reason is the lengthy and complicated laws of the US government not in gambling alone cause the same thing happen to other setting of business that operates in the US
The US regulations are so bad that this is not only happening to casinos but to almost any institution that manages money, there are many banks that do not accept citizens of the US anymore precisely for the very same reasons, and there are many investment firms, international lawyers and accounting firms and even companies that keep your gold have stopped accepting US citizens as customers and it is easy to imagine that casinos are following the same trend.
You proof your point, to us their rules and regulations is bad/burden but it seems to actually work for them despite it limit their chance of getting more tax from some companies which ought to operate on their soil and I think they need to ease the rules now that every countries are experiencing economic meltdown through the covid-19.
Its up to them if they would really decide to stick out with their rules or laws that had been imposed about total ban or prohibition out of those casinos specially that we are on a crisis where tax and revenues
could really be that relevant or much needed for todays situation.For making out some change of mind decisions then its a bit ideal rather than on sticking on the previous laws just because of some
useless ego or the people around arent still convinced on what are the pro's on accepting those neither online or physical casinos.They should be mindful on what are the potential
benefits that they could possibly get on such changes.