I agree a tight security is an issue for onboarding. That's what I said in the post.
Regarding a hardware wallet (i.e. Ledger, the only one Hive is integrated with), it could make sense for accounts with few transactions and where security is paramount. It certainly makes no sense for an account where one needs to use the posting key for posting, voting, etc. But in this case, Clive would be kind of inconvenient too. Most likely a posting account should be kept with a less strict security, especially for more socially active people. If someone posts and comments every once in a while and votes the same way, maybe they could go through the hoops of tighter security, but it wouldn't be pleasant.
I guess they could keep a secure account and delegate to another account with that's almost empty.
That's what I do with my staking and posting account (plus other accounts, like gaming). But even like that, I have quite a few assets in my posting account, which have accrued by using the ecosystem and in some cases it would make no sense to move them to the staking account (tribe/curation tokens, for example).
Sounds like the smart thing to do.