Any casino that is not provably fair today is behind the times. Its easy and takes all the burden off of you. Someone comes in and loses and cries fowl, you just point to your provably fair system. I would never play at a casino that doesn't use a provably fair system. Why trust someone with your money when you don't have to?
You may have overlooked the paragraph that clearly states that 4Grinz is Provably Fair through GL and TST testing, that its providers are tested, and that we continue to measure algorithms daily.
Our point is that Provably Fair is not a system that can be applied in a slot scenario. Anyone that makes such a claim is not only misguided, but misinformed.