Eh, I like to think about it like "tactical play". Look what Ally did to start winning again against M2K. He no longer uses Snake 100% of the match for good reason. Aura is weird in the sense that it could still do wonders for Lucario if he's under the right conditions (and as long as he isn't being timed out), which is partially why imo it's hard to put numbers on Lucario's ratios b/c you'll see lucky and unlucky breaks all the time. The last tourney I went to, in a mm I pulled a comeback against D3 on delfino which I frankly though would NEVER happen lol.
I too have been investing in a secondary, because I live in a region where the dumbest MU for Lucario is pretty abundant.
Man I hate counter MUs/lol CPs