Sounds like an apple issue, there's only three for windows, one being the MS store and most people are used to the idea of app stores thanks to phones.
(I agree it's probably best to deemphasise the bittorrent button though)
It's a website UX issue. If it were an apple issue, every website for apple software would have this problem, and they don't.
Anyway, three equal priority options for Windows is also very bad, from a UX standpoint. Two is bad! The point is that there should be a recommendation. Unless it's fine to send many users away confused, in which case no problem!
(I agree it's probably best to deemphasise the bittorrent button though)