The whole point is that if side loading (or to more accurately describe what I personally would have a problem with, installing from the open internet) can be activated via following some steps, then it becomes trivial to trick gullible, stupid or non tech savvy people into doing something they shouldn't.
As I have several times in this thread, a phone is not a computer for a normal user. They don't consider it like one, and in their eyes there are no dangers attached to it like they might have heard with normal computers.
If they receive a text message, (or a whatsapp - you would be shocked about the amount of people who understand that its a secure platform and assume that therefore the messages they receive must be genuine) - which claims to be from their bank, asking them to download the new 'secure' banking app; 'Follow these security steps ensure your app is properly installed' - an older person, or non techie person, or even a slightly stupid person - (don't tell me they should 'get educated' - its a phone. It should be as foolproof as possible) - MAY follow these steps and lose their life savings.
Phishing exists and is effective enough for people to continue to attempt it. Expose the previous unexposed and highly prized iOS user base to these unsavoury types that do this sort of thing and it WILL open a flood gate to such attempts.
That's a big danger for all users just to please a couple of vocal tech heads who, lets be fair, can get what they want on ANY other platform.
