The download switch is visible at all times when in the library under songs. The risk is that if a user accidentally touches it, it removes your whole library of songs.
Why can't the download switch be moved to the menu or someplace else where there is no worry about accidentally hitting it and then having to take hours to re-download your entire library.
Waiting for 25 approvals for this idea is silly. Only a tiny % of your over 6 million users ever come to this part of Spotify. But if you look online, you'll see that this is a huge complaint with Spotify.
In conclusion, getting rid of the download switch would have no negatives and would save users the trouble of re-downloading their music every time that they accidentally hit that switch.