Whether or not they are behind the affiliate link or there's some kind of MIM/malware or similar attack remains to be seen. Unfortunately we live in a time where app repos are being compromised left and right so with the limited information in the article this was my view of the situation.

I understand what you're saying, I'm saying the information we have doesn't fit the behavior you're equating this to.

Given they only had the issue when accessing it via the moto app drawer app on a limited number of phones and didn't see it when side loading or loading the app from another store, that is evidence against an app compromise and is closer to the behavior seen in local compromises. Were this an app level compromise as you're suggesting, the behavior wouldn't disappear on different devices or when side loaded.

I could easily be wrong, I just don't see the behavior I'd expect to see for a wide ranging own like a repo takeover.