It's particularly a hit amongst center-left liberals who are emboldened into feeling like they are very righteous by not doing anything at all. The more accurate observation comes from commenter Mark F:
> The reason Orwell's essay makes some people angry is that it depicts violations of stylistic rules as moral violations. Use the passive, it says, and you are playing into the hands of the totalitarians. I think that's also why some people like it; people can feel like they're defending the cause of freedom by writing concisely.
> I tend to side with the former camp. I think people pick up on cant pretty well without his help, except when it's telling them something they already want to believe. And in the latter case his help is no use.