It is difficult to manage color, so a certain amount of "bad" color is to be expected, due to lack of skill. For those who do it on purpose, we can only hope that they will outgrow it. In the words of Bill Blake: "You never know what is enough unless you know what is more than enough." And also, "The fool who persists in his folly will become wise."
Actually, I am more annoyed by the opposite - the trend to shoot digital, and then desaturate to b&w for no good reason. Yes, there is some percentage of digital images which will work better in b&w. But there are many more images that gain nothing, and loose something, when desaturated. Maybe it's a good idea to teach students the basics of composition and lighting in monochrome(?), I don't know. But to me, digital monochrome seems like an anachronism. If you want the old-time film look, why not shoot film?
Maybe the two trends are related, each one a reaction to the other?