Well, season 1 certainly wasn't.
In the Vulcan Hello after Burnham has been thrown into the brig, the crewman who is injured on the bridge and is ordered to sick bay by Georgiou, sadly laments the fact that Starfleet is about exploration and should not be at war. Similar sentiments are expressed by Stammets about the Disc and his research in the same episode.
So in case anyone missed any of the interviews or articles in the run up to the premiere, they actually put it into the very first episode.
I interpreted the crewman's dialogue as an acknowledgement by the staff that they are aware of what Trek has been in the past and a set up for this particular version of Trek (season 1 at least). It was like saying, "look folks, we know what Trek has been, we're not doing this out of ignorance or arrogance, but come go with us while we tell this story". Frankly, I think it's funny that they maybe felt compelled to do this, but then we are talking about Trek fans and, oh yeah, this thread. So, not arguing either, just explaining season 1 to you.

"Can anyone remember when we used to be explorers?"
The problem: This exact line of reasoning has been used before as an excuse to drop the "exploration" aspect of Trek. Multiple times. It hasn't worked then. It didn't now.
Just one more things were this "revitalization" of Star Trek feels more like late-era Berman/Braga Trek, instead of a fresh new start...