This isnt other MMOs. Healing has a high cd to begin with.
Have you ever considered the thought that some classes already have to spend a lot of silver just to maintain buffs?
You cant say this is not other mmo if tos do have healers and tanks.you can say gw2 is not like this as they dont have healers and tanks.
Yes some classes spend more silver for skills. If this class have no healer for thee run they spend even more.
So if you dont like that people dont want to do a run for 50 min dont cry that you dont want a run of 4 or 3 players.
There are people on this board, specifically one person who attempted to make a âbeginnerâ cleric guide, who refused to list any build that did not include Cleric2 because ânot enough healingâ.
I honestly have no idea what builds will be required to conquer earth tower, but it shouldnât matter for people trying to make a build for fun or their first character.
After just starting 90 dungeons I am finding 65% of groups do not have a healer and some no tank. This is life 
My lv 50 cleric constantly gets 2 or 3 cleric party whereas my lv 150 dps gets cleric-less party at least once a day. 
Jokes on those 2 who quit then, you guys complete it and get the reward, they dont. The sense of accomplishment is there with more difficulty anyway
Hats off to you guys who finished with only 3 people.
This throws me back to a mission that I will never forget:
Finished it in around an hour (felt like it took more than that) with only two determined guys, three other weaklings left because no healer.
We killed all the bosses too.