The title of the topic is a bit misleading.
What Luke said is that they will work to correct a vulnerability that allow inscriptions to bypass extra data limit configured in the Bitcoin Node software.
That means that if the inscription contains data that is bellow the limit configured in the nodes, they will be relayed and mined, if they pass the size limit, they will not be relayed by nodes and therefore will have lower chances to be mined.
The idiots that create Inscriptions have an option, though. They can negotiate with miners to increase their group limit size and relay between themselves until that miner/mining pool finds a block and mine their shitcoins/shittokens.
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What that implies is, if most of the nodes set an extra data limit very low, it will prevent Inscriptions from been relayed and mined, but that would be a choice of the majority node runners. And that is amazing, cause that is how it should work.
If the majority of node runners organize and configure their nodes to avoid Inscriptions, that's it, no discussion, the network came to consensus and decided.
Miners are making money from transactions and to solve this, a proposal might be proposed. If proposed in Bitcoin Improvement Proposal, did you think that miners will agree? Remember that miners have their own nodes. I do not think any mining pool will agree to this when they are making more money from transactions.
Miners do have heavy weight in those kinds of decisions, node runners throughout the network also have. If node runners decide to lower their extra data size limit, but miners keep their limit high, it would still increase the difficulty to Inscriptions to be relayed and get to a miner.
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Bitcoin Blockchain space is scarce enough for serious Financial transactions and real world settlements, artificially increasing mining fees with these spams only make things more difficult and noisy. The solution proposed by Luke in his post is too soft, in my opinion a more radial proposal should be raised to avoid kids playing with Blockchain space, otherwise the purpose of Bitcoin is at risk.
There is no efficient second layer solution for micro-payments yet, the mining fees as they are now is prohibitive for people to loading their Lightning wallets without paying 10$ to get some money in there.
I think those idiots exploiting the blockchain and Taproot to create shitcoins and shit tokens and shit 80's looking images should be blocked as soon as possible and Bitcoin used for its main purpose which is to be
A Peer-to-Peer Electronic Cash System