I don't mean to totally dismiss this thought; I think it's reasonable and true to some extent; but I believe part of what we've discussed endlessly here is that a day at Epic is totally variable, with possibly high peaks and fairly low valleys. A park day where most things are in working condition and crowds aren't the craziest can be legitimately stellar, but your day is really only a couple of random variables away from a fairly dismal experience.
Add a number of broken Unchained effects or Power-Up games, a number of poorly timed delays or queue dumps, any amount of lightning, a busier than average crowd level, etc., on top of Stardust or MoM being closed ... and the day might end up significantly rougher. There really aren't any solid ways to plan around those variables either. Sometimes a day at Epic is just worse than it should be or usually is.
That's obviously the case with all parks, but I think being a new park exacerbates those issues, with limited offerings and less experienced operations. A lot of these delays, contingincies, and systems are being actively figured out all at once from nearly total scratch. If something goes wrong, the systems in place to deal with that are less dependable than basically any other park in the area. On the scale of an entire park, that kind of management can really add up.
I'm glad to hear that your day went well, really! I just don't think that experience dismisses the critiques we've been shouting around here for a while. I know that's not exactly what you were saying either, but I hope my intention comes across. In my opinion, inconsistency and unreliability are Epic's worst traits.