That's a nice feature to have, especially now when self-generated entropy might gain more interest and use after the recent unbelievable Coinkite/Coldcard debacle.
It would be unfair to taint other hardware wallet manufactures because Coinkite messed up really badly. But it shows how bad the consequences are when only really weak and bad entropy is used in wallet generation and when it's impossible to spot easily for a customer. Customers might now be more sensible to verify if their preferred hardware wallet's firmware code deals properly with randomness and "good entropy".
Are we going to see more specific audits on this very basic hardware wallet functionality?
Human made "randomness", especially by some obscure procedures, is rarely good and the danger is that it's hard to determine or detect how bad it really is. Simply don't do (stupid) things like choosing words "by feel" or throwing darts at a printed wordlist, though the latter might be considerably better than the former.
I've heard several reports of people producing bizarre experiments on trying to create their own seed phrase, like using dice rolls. The problem is that many unprepared individuals watch 05 min of random videos on yt and consider themselves "graduated" on the subject. I've even heard of someone who lost BTC while generating a seed phrase using the iancoleman script, later, this person discovered they had typed some characters in the passphrase field (probably just typed something and forgot).
For people with this level of "understanding," the best thing to do is to experiment with software wallets first, with a reasonable amount of funds, to understand how the Bitcoin network works, public and privkeys, seed phrases, and passphrases, and then choose their hardware wallet brand.
It's much better for these people to generate their seed phrase through their hardware wallets (one that is actually validated and uses a good source of entropy, which I firmly believe is the case with Passport fundation) and then add a passphrase on top (to hide most of the funds). I myself have never done dice rolls, as I don't think it's necessary in my case, I'd like to try it someday.
And yes, I have the same questions as you. I believe that a large part of the community will focus heavily on the care when choosing their device and will want to check more deeply about entropy and demand more explanations from manufacturers after this unfortunate incident.
