Choosing crypto in casinos has always also to do with more anonimous gambling.
Anyway I'm curious how important is anonimity to you when you pay & play?
It does seem slightly unusual for anyone to be using crypto casinos if they live in a country like the UK, America or parts of Europe. You'd always tend to get better odds in your country of residence, after you take conversion fees into consideration. However there are certain cases, like being paid for doing jobs in cryptocurrency or it being restricted in your country due to perhaps some dumb religious leadership. Personally being open with your identity can bring some better perks with it, provided you choose only the most secure casinos who will be storing your sensitive documents, because they tend to be stored for Know Your Customer legislation which is generally reserved for companies in better jurisdictions that can be more helpful if things go wrong.