IIRC it require pool owner to enable such feature manually, so IMO it's not really useful.
Yes it requires the pool operator to enable it, but I don't think that means it should be discarded as not useful. Rather, a push to make every major pool operator run it (and specifically to enable the job negotiation protocol) would help to protect against censorship of individual transactions.
I doubt we'll see such push since enabling such feature doesn't have direct impact on miner's profit.
It might also have some legal benefits for mining pools. If it were to become the default, and some government demands that a mining pool censors some specific UTXOs, then the mining pool can point to the fact that they do not have the power to do this and the miners themselves can choose to include those UTXOs if they choose.
It's interesting speculation, but half-competent government worker could say pool should disable such feature or even switch to different protocol.
But looking at this thread (
Stratum v2: After 10 Years, The Most Used Bitcoin Mining Software Gets Facelift), the reaction towards Stratum v2 is rather mixed.