I still don't see where that can be considered a good thing. Not only will the Republicans fail to use such an advantage, with the stupidity of the GOP-e on display, if they did, it would not be to return the US Federal Government to its Constitutional boundaries.
Many of the fiscal and other problems this nation has can be directly traced to Federal overreach, and that will continue, regardless of who is wielding power.
More federal power is not the answer, no matter who in Washington D.C. has it. The system was intended to have numerous speed bumps to render the processes more deliberative, for the benefit of the Republic. Without that dampening effect, the legislative/regulatory/jusidicial environment for business, and even individuals will become significantly less predictable. That is not the road to prosperity nor stability for an individual nor a nation.
I never said it was a good thing. In reality it isn’t, since the likelihood of getting a whole batch of genuine constitutionally-savvy representatives into office (who could use the loophole to steamroll the Dem’s agenda and put the country back on the right track) is basically nil.
So we’ll see much the same overreach, only with (as you point out) a GOP-e flavor. The only bright spot is the schadenfreude resulting from watching the Dems get a taste of what they’ve been dishing out. Setting the precedent like this means the possibility of that is at least there, even if it doesn’t get much action.