Long and Squaded Instances

Meristem - Sanctuary

I want ask for instances that we could do faster and either alone or with less people in squad. Being over 3 hours for Delta sucks, just like being 4 at Lunar and such.
Also it is obviously we need 6 people for those instances which is a bit hard to find, most of the times due the long time we need to spend on them. I already failed Deltas either because leader disconnected or wizard when to Thousand Streams when he died (and old known bug I think): and what that means? Two, three hours lost...
Or how many times I said "no" to delta invitations because I could stay online just for 3 hours, and not 3 hours and half to complete. That meant I was 3 hours doing nothing on PW useful, or I just logged off.

I know you will say "GRIND LAZY ****", well I dont like to grind, specially when archers can kill just 4-5 mobs per minute when we are lucky or dont want charm ****.

I want be able to some stuff alone sometimes, and grinding is... not cool. Same for normal quests, which cannot be done alone anymore.
And last suggestion would be having them "less charm rapping"... That also discourages people from doing the instances.