I guess i didnt make myself clear, by high end stuff i mean vhof, vmol and vas hm
Honestly it doesn't matter what people say to you. Clearly you are just looking for affirmation to continue believing what you always did. I have seen it before. You will simply keep escalating to number 1 on leaderboards or having something like tick tock torrementor. Even then I feel like there will be a excuse.
It actually matters when it needs 11 more people to do content, I could just ignore what they think and go hardcore, but most likely the healer spots will be taken by a templar. Or I could stick to not so hardcore players and struggle months progressing a content.
Also I am one of the believers the pet on consoles is way too stupid to avoid deaths, its impossible to control them
The main reason Templars are preferred for healing has nothing to do with efficiency or actual healing output. It simply comes down to the fact that Templars have a cheap, reliable, group wide purge, while all other healers have to use the overly expensive and limited support tree purge.
That's really the only difference in a trials setting. The burst heal from breath of life makes more difference in 4 man content, but in a trial you have more than one healer so at least one can get by without an emergency heal.
After purge it all comes down to what buffs you provide the group. Templars get minor sorcery (or prophecy? Can't remember which it is) for the group when casting a dawns wrath ability. They also have a more reliable method of resource support with luminous shards, while other classes will have to use mystic orb which is arguably less effective.
Wardens actually provide a lot more in terms of group buffs and support than Templars do, but lack that cheap purge which puts them in second place for trials healing. Dragon knight, sorceror, and nightblade healers all offer less group support as well, making them less desirable.