2 tanks and 4 dps can beat P9?

[ASkellington]

see, i think in casual content the duty is designed to be clearable even when some of the party members are gone, regardless the role.
when the dps is missing, the party's ability to deal damage is diminished, thus the boss takes longer to die, and the tanks & healers would have to work harder to make damage
when the tank is missing, the party's ability to control the incoming damage is diminished, thus the boss' AA & TB go to someone with low defense, and the dps & healers would have to work harder to survive
when the healer is missing, the party's ability to heal is diminished, thus the whole party is in higher risk to wipe, and the tanks & DPS would have to work harder to recover their health.
so when some certain role is missing, the party is crippled in a way, but is still able to clear casual content.

I personally think that that's a good equality among the roles, since one role is not supposed to feel more important than the others.
and in the hardcore content, it's clearly shown how every role is just as important as the other, by having DPS check, healing check, & continuous TBs.

Because we're not talking about a dungeon. We're talking about a raid.

We're not talking about missing party members. We're talking about straight up replacing a role in content because said content barely has anything for said role to do that the remaining 2 can't do without them.

Bosses in EW dungeons can be done without a tank yes. Raid bosses? Unless you want SGE and SCH to fully commit to using their GCDs constantly to attempt to keep a DPS alive (probably a DRG/RPR because after Fending Gear Maiming has the most mitigations correct?) you probably can't do them without a tank. There are mechanics in place for a tank's requirement. There are no mechanics in place for a healer's requirement.

Now I would bring up the double standard of SE fixing it so when Titan Egi was a thing it could no longer tank. But I wasn't around then, and I don't know first hand if it was possible or not.

So I'll just say this: I don't think its good quality for a holy trinity game (one that promotes tank/healer/dps) to make content casual or no that does not have mechanics for part of the trinity to shine in. Even more so when it is a raid - a piece of content where players are able to group up and accomplish a task.

And I'll also say that is very disheartening to hear that "no, healing requirements are so pitifully low your favorite role to play (healer) is not needed in X content".

Also Hardcore content has NOT shown how every role is important. As said hardcore content was cleared without 2 healers, without a single healer, and some of them on release.