What the core dev-s are doing against the ASIC mining is not certain.
What exactly would you like them to do? Hard-fork and completely change the underlying POW algorithm?
Because that's pretty much the only way to do anything about ASIC mining... SHA-256 is "ASIC friendly", you can't change that.
I don;t know, I haven't been involved. But on the other hand, do you think ASIC friendly is a good thing (mining centralized)?
If I were a CEO of a Bitcoin LLC or Bitcoin Inc., I will do definitely strip out SHA-256 and plug-in GPU friendly algo. Not only that I will start it in a blink of an eye and possibly re-architect so any algorithm can be a "plug-n-play"-ed.
It's already BEEN done, its called BITCOIN-GOLD aka BTG, and guess what its owned by the same ppl who own the chinese mining asics in china, they covered their bets by owning the GPU variant of BTC
Even here on this forum, but done its called BITCOIN-Z, btc-z, its here and trades at 0.0000001 cent, and they made 21 billion of them

Again, it uses the exact same GPU hash as EWBF miner, e.g. zcoin
chinese miners own +90% of the biz, IMHO they own this forum by way of amazon(server), which is tied to alibaba, where Ma is partners with the ASIC guys, ... its all a handful of people that control all,
How can you rectify this? U can't, its too late, ... its like a child growing up and realizing he has to get get a job, and can't live with parents forever, someday the HODL'rs wake up and realize the parents are chinese and own it et-al