Certainly looking like a conscious decision on their part to focus on UK players at this point, but as ever take TrustPilot with a pinch of salt. (In theory, non-UK players should be reviewing on the non-UK Trustpilot.)
Trust pilot is a joke, I had it out with them for having fake reviews on their site last year.
I still play at Casumo from time to time, I have been lucky though, withdrawn in excess of 35k in the last month without a hitch, each time I dep all I can think about is are they gonna hit me with the same BS.