Citation? Well, more like my opinion maybe.
Well, New Vegas is deeply flawed (partially inherittance from Fallout 3 I guess), but is rather highly regarded overall (though personally I don't love it).
NWN2 was seriously flawed... but Mask of the Betrayer, while still having issues... particularly with engine and... Balance - is a great epic adventure.
Icewind Dale 1+2 have heavy combat focus... but again, are regarded pretty high.
Alpha Protocol was pretty creative in what it has achieved.
Pillars of Eternity and Deadfire also have their issues, particularly with pacing, but are still IMO some of the best isometric games since Planescape: Torment and mostly on a similar level as Owlcat's work.
Along with Owlcat, he's one of the few developers I still believe to be capable of making great AA crpgs.
Although Larian surprised me by also making a pretty great one (though on an AAA budget, I guess).