Thread:Ashleyien/@comment-918376-20150707020140/@comment-918376-20151015033241

Yeah the dub is pretty lolworthy. I checked episode 9 and then never looked back at it.

The YP!translation of the light novel seems to separate the "main party" from the "healer" ("so naturally there would be six of them, and they'd probably take an excellent healer along); so Mari would be in the main party, but they wouldn't have another healer on the side. Also, Mari was stated to not really go out on raids, and thus wouldn't have any top-notch gear like Tet or the Silver Sword guys would (which is probably what makes Tet better at healing; she's better equipped and more accustomed to her role).