I develop for a BCH fork (DeVault) and we use the LWMA algo.. It's worked out well for us and we experience much much larger variations in our hash rates due to being a micro-cap.
This kind of ignorance lead to the failure of BTC. Their propaganda was that "every attempt to rise the blocksize limit (direct on-chain capacity increase) is an attack on #Bitcoin".
My, aren't you saucy today. Well, think what you wish. The block size limit was a hack to protect the fledgling network that was no longer necessary, so I never would argue to keep it.
Please come back when you improved your reading comprehension. Most people believed that rising on-chain capacity is an attack. this is why we are on a minority fork with little hash.
Ultimately, most of the big decisions from the original bitcoin were good. You still haven't explained how a different POW would prevent the same problems. I suspect you cannot.
What same problems? it would instantly make the network a lot stronger and better proposition for investors/users. It would enable a positive feedback loop imo.