Good grief. It's not like teaching writing is a bad thing. Besides teaching people to be neat, a good handwriting can greatly aid in the learning of language.
Not sure where you are getting “nasty” from.
Some people simply dont agree with all of this magical properties that supposedly come from a style of writing words that is perennially carped about on FR whenever the subject comes up.
It certainly doesn’t make your writing neater, make you illiterate if you don’t do it, and it doesn’t make bad writing “good”. One thing I notice is that it encourages people to write too fast, and making what they write look sloppy.
So beside just feeling smug, what is the point of it?