A POW change is maybe the last step to fire the disruptive element. The appetite for POW change may have lessened with the failure of 2X, but now is the time we must prepare for it, and build a consensus for what should trigger it in the future. That alone should bring the disruptive element into line. The penalties for future disruption would be clear.
The miners use their hash power as a weapon, the non-miners also have power over that weapon, as we determine the POW.
A POW change is a complex issue as new things and attack vectors have emerged over time. I mean what's the possibility that Satoshi had envisioned "lack of cpu power for the pow function" due to the pow not being done by CPUs but instead becoming ASIC-centralized, and then a rival implementation (which he specifically told that is a bad idea) claiming the hashpower with short-term incentives and pump/dump actions on the markets? Near zero.
Even if you go for a cpu or gpu pow, what's to ensure that this pow function won't experience disruptions from other cpu or gpu coins that are pumped and become more attractive to mine? So pow-mining stability has to also be factored in. But since anyone can fork bitcoin and make a clone, then how can you navigate around this? The only solution I can think of is a combination of multiple pow functions that can run on cpu, gpu or asics / fpgas, all working in parallel / in turns / perhaps each with its own difficulty adjustment. So even if one or two types of pow hashpower leave, you can still have another. This type of system can also allow sha256 mining to co-exist but not dominate the mining.
There are probably other issues arising from multi-pow, as well as possible weaknesses, and then you also have to start thinking about futureproofing in terms of quantum computers... I mean if you are going to make a change, make it QC-resilient also... IBM is currently at 50 qubits, intel will launch 49-qbits cpu this year. But I'm not a cryptographer so I can't say with any certainty how different ordinary hashes can combine with QC-resistance and what the threshold of danger is for this type of "threat". Anyway...
...Meanwhile the market is trending near 6666 levels