Some people are suspicious of it because they don't usually make public comments like other miners do. Or maybe just because they are hard in the USA in general. By the way, this last part doesn't make much sense any more with the new pro-crypto administration incoming.
Just to iterate on your last point:
Donald Trump has stated that he hopes all of the future Bitcoin to be mined within the US. Would this statement still be positive for the crypto industry and what we stand for? In addition, would the recent stand that he takes still be positive for the Bitcoin mining industry in the US? Of course, discounting the fact that every one of them are just looking to rake it more profit.