"Very noncommittal" = not engaging in attempts to create a public fight between the pope and his opponents.  Very wise.  And he has no requirement that he HAS to respond to anything.  I wish you traditionalists could get that clear.
"Pope Francis has changed NO doctrine" = he hasn't enforced the most ridiculous/hurtful doctrines either.  He uses the same approach every other predecessor has, ignore the ones that do not meet his Petrine mission.  Sad that this is so unclear to you as well.  But there is ample evidence that +Francis will indeed change some aspects (at least) of specific doctrines, and it may be by the further development of an existing one (possibly lifting many of the restrictions on who in the Church may receive Holy Communion).  I know the claim of the pope changing "nothing" is reassuring to some conservatives, but it is a denial that - like most primitive defenses - turns a blind eye to fact.
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