Angry Grimace
Two cannibals are eating a clown. One turns to the other and says "does something taste funny to you?"
The problem (and this has always been the ongoing tension here) is that people who play really competitive Standard, or who enjoy pro play as a spectator sport, want formats to change pretty often so they're interesting to solve and fun to play and have unexpected things happening when you watch.
Most people who play Standard (i.e. FNM regulars) actually want to find out what the single best deck in the format is on day two, buy the pieces for it, and then play it for a year without changing a single card, both so they can control the expense and so they can get better at playing that specific deck.
As someone who watches every Pro Tour but plays exclusively Commander and draft, I'm certainly in the first category, but that ain't (as they say) what pays the bills.
Hardcore players are almost always a vocal minority in a game like this (see also, casuals vs. hardcores in World of Warcraft) so I think the decision comes across as confusing since so many people "seemed" to like the twice-yearly rotation schedule.