That is the main principle that the Ordinals Attack is using too.
Maybe I'm just a non-technical dumb guy with too many opinions, but I honestly see no difference whatsoever between the "Ordinals Attack" and the Lightning Network Attack on Bitcoin. They are literally the same thing. Feel free to convince me I'm wrong. The only difference between the two seems to be how the users want to use the blockchain. They both benefit from the same subsidies that should have never been created anyway. My hope is that this "attack" shows how dumb the layer 2 implementation currently is and maybe get developers to rethink a new situation that doesn't burden actual on chain users. I don't know, maybe the super simple merged mining system satoshi himself thought was genius and would give users choices without burdening Bitcoin's blockchain to push some patented solution by a single company.