The codices are being updated and re-leveled, guys. We might seem OP now...but give it 6 months.
While true, we have already seen that IH is heads and shoulders better than the other space marine supplements that have been released. It's not even close. IH blow Ultras, WS, and RG out of the water and in some ways do their things better than them. It's comical almost. This means that the internal balance of the supplements was out of whack from the word go. Doesn't inspire confidence. If new things are released that are on IH levels of power, than Ultras, RG, WS, and more than likely IF and Sallies are in trouble.
Were you here for the Edition change? When C:SM dropped and the only army with a codex was blowing Index-only armies out of the water left, right, and center?
That's what this. Be patient, grit your teeth, and do your best to handle the cyber-boys-in-black. Everything will be leveled eventually.
I get it, I do. What I am saying though is that some other supplements have been released and we have a good idea of what will be in the other supplements that are coming out soon, so we can get an idea about some of the balance. IH is blatantly superior to those armies. Ultras, RG, WS are already out and not even close to IH's power. From all we've seen IF and Sallies won't be able to compete either.
Again, these are armies that have their update or about to get them. How are they supposed to compete if you are right and it turns out that other armies get to be as good as or even stronger than an army that already is superior to them? Imo, that's not good balance.