He was calling Blender idiotic, not you... And I would have to agree with him. If Blender seriously exports detached faces to other software... well... that would be idiotic ;)
Wow man these studies look awesome. And all of the models are done in blender? Man that's just wild to me, probably the best quality blender art I've seen.
I can see that blender will be in the anime industry a thing. There is already ryo chimo a keyanimator(birdy, noein etc) that tries out blender: https://youtu.be/SFVliEZimQ0
the studio responsible for monument valley appears to be based around blender: https://www.blendernation.com/2014/04/23/monument-valley-a-stunning-ios-game-designed-with-blender/