Don't worry and have faith in the devs

They are taking into consideration players' fear and hopes, don't worry

It's the first server I see where our opinion is actually listened to. It's really customized from that point of view, even if course, you can't always please eveybody.
And I can tell you that progressing through tiers doesn't necessarly come from the fact that you slave away your computer for hours. I don't have much time to play (loving wife, two young kids, work) since I usually raid once or twice a week maximum (more during holidays of course) and we progressed to t8 with 3 or 4 active members (but boxers). Now we are more active but it's not only a question of being in a raiding guild. Ask around if you keep wiping on mobs so you can get helped to progress. Also, hard quests can be hard for many things, the time you spend on is a part of it.
If you take T8 access quest for instance, the requirement is not too hard to get to (killing the 3 first named of DSK1) but the essences collection is timesink (though I know some mates who did it in few hours only). The last mob to kill is hard as long as you don't have the script in mind, but he drops 5 + 1 shards so it speeds things up for other toons (can skip everything but the DSK2 access). All in all, it's pretty well thought because if for an access quest you make it "too easy", you might quickly end up in a crowded zone (especially if it's an open zone like hoh) so you have to find the right balance for the difficulty.