My opinion is anyone who owns iPhone knows what they sign up for, and does not care. So I don't get your rant.
- Do you own iPhone? Well, you've made your bed, now lie in it. There are hundreds, if not thousands, of phones on the market - if you chose one without 3rd party app store, it's on you.
- Do you own Android? You have nothing to complain about, push any apks you want anytime. Hey, get Samsung - it comes with 2nd app store preinstalled (from Samsung of course). Maybe even root the phone if you want to.
(Note the GP mentions "MDM", and that's why they could not use this route. MDM means corporate security, and they apparently made a rule to block 3rd party installs. This is sad, and I feel for them... but this is a corporate problem, regular users are not affected)
- Are you complaining on behalf of other people? They are all adults and made their own choice. If you want to make a difference, advocate against Apple. Or even better, advocate for regulations against Apple, to make their products worse so that more people move to Androids.