So they're not going to have stats at all for now at least, I wouldn't say just because they're not showing profit/loss stats they are definitely trying to pull something here but I agree with OP that they should be transparent and have some sort of a profit and loss stats for their users to see where they stand in terms of profit once in a while, I certainly prefer to have access to my betting profit statistics at all times even if it is not that accurate instead of having to contact their support to get those stats every single time.
P.S. This topic probably should be moved to "Gambling Discussion" section.
having inaccurate stat could lead to problems(not sure what but it could). the gambling site did the right thing by removing the profit stat but they should have informed and explained to their gamblers about the inaccurate profit stats and their plans of removing it at the moment before finally removing the feature on their website.