Merely recommeding was kinda OK. Saying you don't need to roll dice or use passphrase was the problem that got ppl fucked. Never fully trust something or someone especially if you don't have the hability to verify their claims.
In theory it would be OK since seed was generated somewhere else and provided you use it airgapped because can you really trust it at this time? It would only be a glorified signer for all purposes.
Yea. I remember rolling it too, but can't remember how many times. Im pretty sure I did 100 rolls plus passphrase. Probably saved me but I'm not risking it. Lesson for next time: Document the process so you can be sure how you did it.