No one is making anyone make changes. Miners can put non standard block in the chain despite the node software, and we really don’t want utxo bloat.
None of this is changing the blocksize and all the hand wringing about spam is massively overblown. The chain is practically free to transact on currently, this is why the spam narrative has been abandoned in favor of the csam narrative. The csam narrative is an appeal to emotions but makes little logical sense.