I agree with what you say, but the tedious micromanagement is way more important lategame as well, simply because you have more armies, more fronts and there are more forts.
While that might be true, at least early game you have something to interrupt these things.
Personally I am sometimes annoyed by events early.
"Okay, 2 more days until x, then 16 days for z, in 400 days I have enough diplopoints for y an-OH CMON, I DON'T WANT THAT TEMPLE".
Which is why many say you can't have a perfect game.
Well, lategame you can. There's barely anything to interrupt you.
No wild alliances, no rewarding missions (aside from settler increase and inspiring victory), no penalizing events (-100 ducats? really? That's less than a month's net income) and much much more.
Or less.
You can map out everything and plan really well. Everything is and can be expected and while that's also true for your early game you might not be able to prepare for all of it pre-1600 and have to react instead.
Lategame, what's there to surprise you really.
I am delighted once I get there, but I am surely the minority.