While what you stated (first quote) may be true, that does not negate the possibility that there were some errors in strategy at certain points in the game (eg. certain specific playcalls at certain points in the game). One truth[s] (lack of execution, turnovers, poor officials, etc), in this case, does not negate other legitimate explanations (poor strategic decisions in the game) working in tandem toward the loss.
It seems a bit naive to totally exclude the possibility that in-game decisions IN STRATEGY might perhaps be one (among many) of the reasons as to why we lost this game.
(EDIT: The most glaring reason being lack of defense, as per usual.)