Dunno..probably Laughing Skull Orc rep? Had some transmogs available but couldn't be arsed to do it in WoD, so I mass farmed the rep area in Legion.
Other than that no idea what "heavily timegated" means. And it means something else to everyone, so the discussion really goes nowhere.
IMHO Onyxia scale cloak and rep for Hydraxian waterlords to douse MC runes as well as the AQ event were already less and more "heavy" timegates. Now we have more activities, so we have a timegate on all of them - and ofc for players who think they must do everything - that becomes unbearable.
TBH - I wish that just as an experience they would put infinite dailies and WQ on the map and have mobs in areas give rep so ppl can farm to their heart's content. But what would it solve. One half burns out and then says they have nothing to do, the other half will call the very existence of rep a timegate.
Reminds me of ppl who thout the removal of offside in Soccer would make for a better game - or recently when for years they screamed we need a video referee to make the game fair. Now we have them - and ppl complain it kills the game.
In a way I am glad that I can / need only to do 4 dailies and then can go off....instead of wasting my day without limits. I have no idea what would happen to my social life and job if...for example...I could do Horrific Visions endlessly. I'd just no life it for that mount and would feel shit and hollow. (Still think 100k mementos is too much
)