No question about it; it would be horrible and only the really poor people in game ("Look at how much gold these dailies are giving me") would notice a positive change.
But I'm a huuuuuuuuuuuuge supporter of gold sinks. I really, really think Blizzard should implement LOADS more gold sinks. It would help, no doubt about it. Especially since the gold generation in MoP has been absolutely insane. Dailies give 50G and you get random 100-3000g for easy achievements/quests.
Lower gold generation, implement a lot more gold sinks. Not forced gold sinks (5% AH fee, repair, reforge, transmog are really good as they are), but novelty items which are well designed. Both cheap and extremely expensive ones.