Ordinals is not part of the Bitcoin protocol to be "rolled back", it is garbage that people are injecting into the blockchain by exploiting the protocol which means the only way to "roll it back" is to reverse the blockchain which is not possible because it would effectively eliminate one of the basic principles of bitcoin: immutable blockchain.
Developers of Ordinals wisely exploit the Bitcoin blockchain to make their shit tokens look to be more valuable. Because it's harder to scam with altcoin blockchains as many scam tokens on Ethereum, Binance Smart Chain and other chains. Since 2020 and GameFi, NFT trend last three years, many people learned hard lessons with Non-Fungible tokens. They are more careful with NFTs and Ordinals team used Bitcoin blockchain to make noise and make people greed.
I fully support any actions taken against this attack though, even if the mempool were empty. Because it is still abusing the protocol.
The Glassnode report shows big effects of Inscriptions on Bitcoin mempools since February 2023. Issues from Ordinals might become bigger in 2024 and 2025 bull run when people greed will be bigger in bull run. They will not care to waste $10 or $20 for transaction fee like they care about it in bear market.