It's nonsense to to display a 5 Star rating on each casino that you are featuring considering that you are claiming that only best casino you will feature there. You can just remove or don't list the casino that didn't meet your standard since the rating score is base on your personal opinion alone and doesn't required review from other people. I believe you might consider too the reputation of  casino here in the forum or maybe some note on cons especially for Cloudbet. They have a lot of issues before so start on that.