I see this point being brought up a lot. "I have # of characters that means I have to do this # of times". .. well yeah.
I get it sounds like a long time, and ideally they'll remove the unskippable part from solo/unsynched queues, but for some perspective, it's maybe one night of gaming for ALL of it.
Sure if you brought all of your 15 characters to these points at the same time.. and ran them through the MSQ at the same time it would add up. But is it so bad to do it one at a time? How much playtime have you spent in total? As a % of your total playtime, what part of it is that 2 hours for all 3 quests?
YES you need the choice to do it by yourself and how you want, I agree there, but as it is now stating that "oh my goodness I have so many characters I have to push through it, it is going to take forever." is very odd considering you're willing to put in the hundreds of hours it'll take to do the rest of the quests and leveling.
Maybe I should be posting this in "unpopular opinions" but it doesn't seem like this is all that compelling an argument, just a minor bump on your way to MSQ completion.