Everyone talks about the good ole days when it comes to WoW. There is often times nostalgia, especially around the end of an expansion. The truth is that it wasnt always the good ole days.
Back in Vanilla and even as fresh 70s in BC, the instances were hard. Like really hard. Scholmance was a several hour run to get to the end. Tanking as a Warrior with no AOE ability wasnt fun either.
Shadow Labrynth in BC was a nightmare. The first time I got through it I think we had 11 wipes and it took us over 4 hours. It was ridiculous. Had to do it though just to get the key fragment to eventually get into Karazhan.
BC and Vanilla would cock block you at every turn. This generally applied to raids during those periods. In my BC guild, we spent about a month at Moroes, and month at Curator, and a month at Shade of Aran.
It wasnt easy. By comparison, people were pug clearing Naxx in no time at all.
The good ole days were fun. But that was mostly because of the company I was in. Hanging out with friends is the bread and butter of this game, and it doesnt change at all.
The only good thing about getting Donkey Punched by instances was the joy of finally completing it.
If 5 mans are going to take 4 hours to do like they did back in the day, I am not going to be very happy. Who has that much time to spend? Who wants to spend it all in a single 5 man instance?
Surely not me.
So wish not for the good ole days. Just hope that your friends are along for the ride and whatever content they throw at you will be alright.