There was a discussion at the Bitcoin Dev team to ban these nuisances. But not sure how far it has reached.
its been a known flaw even before the flaw was added. and core devs did nothing to re-formulate the opcodes to limit the risk then and for years have just been trying to ban, moderate and delete posts of anyone discussing proposals to stop/raise awareness of the issue even before ordinals abused the flaw
secondly. legacy(old) nodes wont benefit from it. also old nodes will have more issues to contend with. such as seeing 'funky' transactions. aswell as still not being able to trust unconfirmed transactions due to RBF and CPFP.
thirdly new nodes wont benefit from malleability. because malleabilities main headache was double spending.. and guess what.. RBF CPFP still make double spends a risk.
fifthly, the 4mb weight. is only going to be filled with 1.8mb tx +witness data. leaving 2.2mb unused. but guess what. people will use it by filling it with arbitrary data. such as writing messages, adverts, even writing a book into the blockchain.
..
we will definitely see people purposefully bloating up the blockchain with passages of mobydick or other nonsense. and core have done nothing to stop it but done everything to allow it.