Dear governments of perhaps-slightly-less-democratic-than-it-appears regimes: the appearance of democracy is quite important. Just for, you know, appearances sake.
So, even though everyone might have an idea that your free and fair elections are as free as OJ Simpson and as fair as the average January day in the north of England, you have to at least pretend.
This is something that the oil-rich Azerbaijani government might have overlooked. Or, rather, whoever is in charge of its Central Election Commission election mobile app.