Yeah i play and i play way more than you, and I don't formulate my own opinions off those top players who are actually allowing Aegislash to be suspected i rather decide for myself by actually playing the game and building teams that actually handle threats in this metagame well. You said numerous times you haven't played comp mons in months, so you talking about the metagame doesn't make sense since you're not playing it and going off things you read off of Smogon . Balanced cores like Hippo/Ferro/Starmie does a solid job against most of the metagame. 4 attacks is easier to deal with than KS, it's defenses in attack stance are horrible and it's slow af it's a glass cannon. While it's only priorty move is pretty weak even with life orb, you can switch in any dark type faster than it and kill it or just anything faster than it will take it down.
In any metagame your team won't cover every threat that's legit impossible, name a metagame where you can build a team that covers every single relevent mon. You cover as many as you can and try to revenge kill what you can't check, that's how it's always been. Do you just want them to ban Gross, Altaria, Lopunny, Lando-I etc just because not every single team can beat them that's really dumb. None of those big threat mons are really broken and they all have a surefire counter or two, while in XY there were things that had no real counters or were powerful enough to break through them (M-Luc, M-Wile , M-Kanga) or stuff that can run quite a few viable sets (Aegislash). They haven't been too ban happy in ORAS because every new Mega has stuff that can easily handle them, except for Mega Salamence and that's why it was banned.
The people who are constantly complaining about things being broken are either really bad players or people on Smogon who keep getting beat by a certain mon and instead of fixing their team to counter such threat they rather ban it or bring in something even more broken to take it out. Everyone expects bans now, since they got so ban happy in XY which they had to since the stuff their was a lot more broken/good than the stuff people complain about now. ORAS is a pretty fun metagame, you can run numerous playstyles and have great success with it from Stall to Hyper Offense and everything in between can work. Adding Aegislash ruins any such teambuilding and forces people to throw counters for it on teams that normally wouldn't have a Mandibuzz or something similar on it. While right now, it's very easy to build teams and it's a very solid balanced metagame overall.
