well, that's actually the main point I wanted to bring up through that question: what defines an inferior set, and why is outspeeding a counter considered inferior to greater damage potential?
If you were to build a stallish team that was set upon weakening lucario's primary counters to the point where they could be outsped and swept by a mixed (or an all special/all physical for the sake of argument) agility set, is it really possible to say that the SD set is automatically superior to an alternative set?
Yes, in most cases SD's damage potential is much, MUCH higher, but that isn't the goal of an agility set: its goal is to beat those counters which the standard SD set loses to. Sure, it can't muscle its way through defensive rotom, but it'll shred through a scarfed Rotom-H (89% minimum with dark pulse) and automatically OHKO all non-yache gliscor, scarfed flygon(other dragons), etc. It can also still deal with scarfed Latias assuming it comes in on rocks twice without having to rely on a +2 extremespeed (the fact that latias can be trapped and pursuited being ignored just because it's a setup opportunity for the opponent, lol). Basically the only reason I suggested close combat over aura sphere is just so it can muscle through blissey if it comes to it. Setup is similar (come in on a resisted hit and threaten a setup), but agility sets in general allow the users to beat their counters (who either rely on outspeeding or a priority move to beat those pokemon). It's the same argument for something like agility zapdos, who has a field day after blissey is gone or weakened (or with toxic spikes out on the field): why go for increased damage when those pokemon already have the type coverage to straight-up beat their existing counters?