I don't think that's going to do much good. For the wealth tax for instance they can go back 5 years, and if funds are abroad they'll go back 12 years.
And they'll tax you on funds you don't longer own, such bitcoin held by lost wallets or lost private keys? That seems ridiculous.
Or it might be true that they introduced it because they thought some people could find it useful, and the rest (those who aren't affected) wouldn't care.
I'm sure some people would find it useful if they could upload their KYC documents to their Trezor and then just connect up their Trezor every time a new exchange asks for KYC and it sends it all off for them. And some people will find it useful that Ledger are letting them complete KYC to link a crypto debit card directly to their hardware wallet. Doesn't mean these things are good ideas or that they should be introduced simply because some people might benefit. Hardware wallets should not be implementing features (and therefore indicating support for such features) which help to reduce privacy or security.
It's good that they are removing this, but it does reveal some questionable thought processes and direction of the Trezor team.