At first, I thought it was something interesting, a sign that banks are trying to adapt to reality. But this thing about having to exchange cryptos for fiat to transfer money anywhere is very upsetting. It's like a centralized regulated limited exchange rather than a bank to me... I don't think this will be attractive to people. Perhaps only to hodlers who for some reason prefer to keep their coins in someone else's hands, probably pay extra fees for that and definitely be asked questions about those coins as well as being fully identified as a holder of those coins.
There's no way you can ever get real Bitcoin in or out. You're buying or selling price exposure and nothing else. Maybe they're not going anywhere near the real deal either.
For better or worse I think this will be appealing to quite a few people. It's totally mindless and all of it is someone else's problem. Not for me though.
I do wonder what'll happen in times of enormous volatility. And what happens if you put in 10 quid and it becomes a million quid. In theory it should breeze on back to your bank account. In reality they might have kittens despite it being entirely through them.