I am not good at explaining it and I I could be wrong. This is what makes sense to me. To me It looks like core has been down a bad path for a while. Bip110 is being put out to help shrink the attack ...
I run a node and I thought bitcoin was for everyone, I thought it was supposed to be censorship resistant and permissionless I don’t see how BIP110 maintains or adds to those things. Also Luke was part of Core for a long time..