Shouldn't it be more desirable to come up with your own way (dice of various sides, coin flips, other) to pick one number in 2048. Just grab your own 11 or 23 numbers from the BIP-39 word list. You still need to calculate the 12th or 24th word which is a check sum. But it seems doing that (coming up with the 8 possible remaining words from the list of 2048 which can be used as the checksum word) may require less trust than making sure your dice rolls are actually used to generate the seed (as you point out). Then you can enter your 12 or 24 words into two different vendors hardware wallets (using the same derivation path) and confirm the first generated address is the same on both. Now you are confident your 12 or 24 words were in fact randomly generated, and the addresses being generated correspond to them as you expect they should.

isnt that mitigated by inputing the dice rolls into multiple offline places and getting the exact same seeds with the exact same receive addresses?

This is a solution to that problem... I don't understand why ppl still use Coldcard or other "wallets" to do the basic stuff...