The main issue here is that even if they do not ask for KYC right now, they probably will do so, soon. On the one hand, it’s somewhat annoying, but on the other hand, if you really care about decentralization, it’s best to set up your own full nodes anyway. With the cloud wallets you are trading independence for convenience. This is the state of the crypto space in 2019.
In any case, I would also like to hear about the experiences of people using the block.io adapter. If anyone wants to share their experience, please do so.