Show me more than five indie games that don't look like simple reworks of something you'd see on the SNES or PC in the 90s, but in HD. Most of these "mechanically involved and interesting titles" had already been done to death. If anything, most "indie" games should just be called retro HD.
He never actually specified indie either, but it's like anymore it's either AAA or it's indie. If you play AAA, you're just a mainstream and terrible scrub, but if you play indie, you're some super enlightented gamer who is above such silly things as graphics and aesthetics with an entertainment form that is based around a visual medium.
AAA is such a stupid term anyway though and seems to be used only for games that cost the most to make. The shots he posted of Dark Souls is the perfect example of an "(A)AA" game, since the middle tier really hasn't existed for a long time now.