^^
stealing the paper or the device is the same just a very littke of weight difference
The difference is, if you steal my TREZOR, you ain't getting my coins... You need both my TREZOR and what's in my brain to get to my coins. But if you steal Jimbo's paper wallets, you already have his coins...
If you are using a passphrase in addition to the Trezor then yes, no matter if they have physical access and dump the seed + PIN which is the most they could get.
Extracting the seed from a Ledger would be WAY harder as it never leaves the secure element once it is set.