Class balance, should warriors be viable?

Lately there has been multiple hp wash related posts, this isn’t one of them! But it was brought to my attention that if we eliminated hp wash everyone will be playing NL and BM and none of the warrior classes will be viable and will be able to join bossing anymore.

first of all I know parties will be more or less affected by your in game relationships with the rest of the party, but let’s ignore that for argument sake as it was ignored during the above claim.

so that leads us to the main point: are the damage discrepancies so big that people will be taking average/below average geared NL and BM over above averaged geared warriors? If so should the balance team bring their output closer to the ranged classes so that they are lower on average but not absurdly lower that no one will take them on runs?

(mages are also in this category but they have ultimate so until that is removed let’s move them to the back and discuss warriors first)