hosseinimr93, Charles-Tim,
Here is why I think it is reasonable to wipe/reset hardware wallet in Situation 6, long term investment.
In this situation you are not going to use your bitcoins for a very long time. For many years.
Which means that you are not going to use your wallet for a very long time, for many years.
But you still need to take care about:
either
Your wallet AND your backups.
or
Only your backups (if you wipe/reset your wallet).
And it is more simple, safe and convenient take care about backups only. Just fewer physical things to take care about. Which increases safety, security and convenience.