As a long time AAA dev who was sometimes irritated by implications that AAA devs were somehow lesser than indie devs, this response strikes me as quite off base. The individuals who work on these games are incredibly talented. That does not mean critics are obligated to praise the end result.
Activision's head of marketing says Modern Warfare 4 has a "Call of Duty tax" to contend with. "There's obviously a lot of fandom around indie games and excitement around new games popping up ... https://kotaku.com/activisions-head-marketer-says-modern-warfare-4-faces-a-call-of-duty-tax-2000746337