The wallets generation process is deterministic so once you know the master seed all the wallets tree can be generated. Our wallets generation process will be open, so anyone can use it, but being open does not mean that it will compatible with other wallets. Nowadays there are several coins not supported by any hardwallet, we want to correct that but this will mean not be compatible with present wallets.
As anyone can decide to leave HASHWallet we will offer a migration tool so you can use any other wallet if you decide that.
I see this as security risk.
Any kind of 'migration tool' and centralized protection of seed can potentially be hacked.
Not to mention that we need some extra tool just to export seed.