Maybe, but rollback shouldn't be option any Bitcoiner (who value immutability property of Bitcoin) consider.
Yeah, no rollback. We would fall into the same paradigma of other shit networks that have the "power" to travel back in time. Immutability is a key feature of Bitcoin blockchain. It needs to be kept that way!
Flooding Bitcoin network always has been possible though, even without Taproot. The difference is Ordinals, BRC-20, ORC-20 and other thing give financial incentive to make people do such thing, without even thinking their action may flood BTC network.
And on top of that, this exploit has been being used as a cloud storage. That is not the purpose of the Bitcoin Blockchain although some argue that any information in a blockchain is "cloud storage", that even the normal transactions in the blockchain can be considered cloud storage. But in this case, my argument is that blockchain was created for this purpose, not for storing monkeys and all kind of crap! As already was said smewhere, this might even remove trust from the blockchain, from some users perspective and make them leave for another blockchains!
And there is a question that is kind of messing with me. I don't have enough knowledge to answer it but these jsons that have been being included in transactions are somehow using some space, right? So, if there is this space available, why can't it be used to include even more transactions in a block? Isn't it viable? Why is there this space available and ready to be filled (now) with this spam jsons? Why can't this space be used to improve the efficiency of the blocks and blockchain in terms of number of transactions per block, at least?