Removing malware is a lot more complicated than just go in and delete a few files. Feel free to take a look at the Malware Removal Logs section here in Malwarebytes forum and see how the real experts work.
Anyone can do that, but nobody else does that. Because they do care about people having malware-free machines and not only money like Enigma Software, perhaps?
Crypto ransomware do not need to mess with the boot loader to take your data hostage, and PUPs do not need the boot loader to make people go crazy - and those two are some of the most popular threats right now. SpyHunter's boot loader modification does nothing but creates problems, since it can mess up the booting process - especially on systems with more than one OS installation.
My opinion about SpyHunter being a rogue application still stands. Poor performance (from Aura's post above), unorthodox protection methods that do not increase protection but create problems, billing issues reported by users, etc. Do those make SpyHunter good or bad? I think you can see it for yourself.