Pool is the last sport to be concerned about the hypothetical of trans women making it hard for cis-women. It makes more sense for a sport like track where, yes, cis men do have a biological advantage. The average person thinks a trans woman is able to just jump into a track race without having taken any hormones and dominate, making the propaganda as effective as it's been. They don't bother to look into the steps that need to be taken before they can compete.
Pool, on the other hand, really doesn't require any of that and should be one of those sports that allows for a more gender-neutral competition.