Solved by who, BTC is not a centralized project that has a central third party that can arbitrarily 'solve' problems and take any decision. Take note that in the BTC network nobody fixes tx fees, the same way nobody can 'solve' the issue of high tx fees, it is the 'network' and the community of BTC users that collectively decide on the fees, If there is a congestion, fee rate rises because you have to outbid another user for block space and if there is less congestion, fee rate drops. Right now, ordinals is creating the traffic in the network, and you don't expect miners to blacklist their tx's, because the network is censorship resistant and they also need the fees.
Well if you are saying is true then where is this decision sorry collective decision is taking place because I am also a community member nobody asked my decision, ( I want my money back hehe). Just kidding, actually, I was talking about BTC proposals, I hope you are aware of them its like BTC grant programs where they award the developers with BTC if their proposal solved some solution.
And if I don't get wrong I think you might be talking about the same thing but you should have used the term proposal because in this procedure if you have a proposal that the current fee can be controlled by implementing this mechanism then you have to share that proposal on community (there are many other communities where the proposal is made) and they are then selected by the member and the one which gets more votes gets to the final stage of implementation with proper pre-cautions. And talking about miners they don't want to blacklist or as a matter of fact, why would they blacklist because they are earning the most from the congestion, even I am assuming they are the ones behind these dust attacks.
