Is Twintania even doable without a virus rotation?

[Royze]

Actually, a WAR will provide more than just the 10% dmg debuff. He will also be the fifth dps which will be very useful for all the dps check phases. He will surely make things a lot easier in T5 but it's still doable with 2 PLD. Just like how T2 is doable without a bard. No one is forcing you to bring a WAR along.

Where have you read/seen info that demonstrates WAR is a superior DPS to PLD?

EDIT: If you're a tank, you can get the job done perfectly fine as PLD or WAR.
Who are these people that think leveling a job to 50 is some steep mountain that requires herculan effort?
If you can't tank as PLD post update, you should have never been on the job in the first place.