This sounds lovey dovey nice until.. incentives shift. Just like they did with segwit block bloating and selective miner whitelisting. If you define validity solely by what miners can produce, you’re not guarding consensus.. you’re handing it over. Filters are not censorship when they're part of protocol stewardship.

Even in 2013, it is quite ironic that policy changes were treated as consensus risks.. that is why devs hardforked after a relay split, not before.