Haven't there been spam on Bitcoin since it's creation? Satoshi "spammed" message in block 1, colored coins and NFT have been thing since 2012 etc.

BIP110 doesn't actually fix anything. It just tries to prevent some people from transacting, even though they're willing to pay the fee. That itself sounds quite backwards thinking, shouldn't we try to build system that would have less discrimination on who/why/when transactions are happening 🤔