Will this stop the PoS upgrade and get the PoW algorithm back in check? I guess not, this doesn't change anything only the name changed to me, high gas fee is the major problem of Ethereum but abandoning PoW algorithm won't do any good
if you read the article, it will just be a rebrand. POS and sharding will still continue and if Eth remains to be a PoW, it will be a big problem in the future since some countries are already proposing in banning crypto mining activities. its a wise choice for Eth to continue on the pos mechanism.