Don't forget that markets like predictability. A "kick the can down the road" solution offers none. I wouldn't mind if forking bitcoin was fairly easy but as far as I know, it is not.
The smaller the change, the higher the predictability. A drastic change in any aspects of the bitcoin protocol will cause many unpredictable behavior from various participants and the future becomes very risky
This is not true for those who rely on the network to handle a lot of capacity. Having uncertainties on the capacity of the network is not good for predicting where your business is going.
Capacity of the network is flexible and excess can be routed to
off-chain solutions when the need for absolute trust is not necessary.
Unintended consequences from drastic changes can cause critical breakdown in the system.
This hypothetical, highly experimental not yet delivered solution gives nothing to removes uncertainties. There is absolutely a balance to find between technical uncertainties and market uncertainties. The last one being neglected up to date.
Offchain solutions exist now. I believe transactions between Coinbase users for example are not recorded on the blockchain. Do we need improvement on that front? Absolutely. Is it coming? You bet is!
