Since people have necro’d this thread and stating the OP is correct, let’s look at some things:
Rep grinds don’t really matter. You get a few crafting items from some of them, but for the most part you get specific quests that unlock Renown that take about 30 minutes at a time. Rep is more cosmetic item related.
Pathfinder isn’t tied to rep (at least not yet) as Blizzard has even stated as much.
Titanforging is gone.
Blizzard has catch up mechanics in place to allow people to not fall too far behind others if they are new or returning players. This actually lowers MAUs because, unless you are playing for other reasons (raid/m+/sheer enjoyment of the game) then they can’t time gate you for MAUs since you’re already playing. Otherwise you can just not play for a few month, come in, and catch up, which also doesn’t affect MAUs.
Good news OP: rep has almost zero influence on end game unless you really want to be the one in your raid group with a feast or cauldron drop. People complain about the Maw not allowing any mounts, but with portals being opened up as you progress, and the fact that people haven’t stated yet how those 2 dailies just can’t be completed on a daily basis because they are on foot, then it’s obviously not that big of an issue. Nor does that increase MAUs as people are still playing to play the game.
Seems like anyone who has played so far would be able to tell you your fears are unwarranted and you can jump right back in to the game and play.