The point of the above comment is that Google intentionally introduced the word "sideload" to make "installing an app on your own device which Google did not curate" sound more risky and sinister than it is, and I'm inclined to agree.
I "make" coffee on my keurig. If Keurig decides that making any single-serve coffe pods that aren't owned by the Keurig brand is now called "off-brewing," I'd dismiss it as ridiculous and continue calling it "making coffee."
We should use the language that makes sense, not the language that happens be good PR for google.