Can you corroborate this? At least for me, the whole idea that "sideloading" has negative connotations only came up as a result of this debacle, and the only evidence I've seen are some very careful readings of blog posts from Google. The word itself hardly has any negative connotations aside from something like "not primary", which might be argued as negative, but is nonetheless correct.
>You don't "sideload" software on your Linux, Windows, or macOS computer: you install it.
Right, because those devices don't have first party stores. Windows and Mac technically do, as does some Linux distros, but they're sufficiently unpopular that people don't think of them as the primary source to get apps. Contrast this to a typical Android or iOS phone.