[tripzilch]

You're missing the point. Security is throwing up a hurdle against installing outside apps (could be a bit steeper hurdle than Android's if you need). That's enough to keep your grandparents safe from installing crapware. Apple fighting tooth and nail against any possible installer, sideloading, rooting, whatnot, that's purely for the power, control and financial benefit of Apple and "their" ecosystem.

I put quotes around "their" just to remind that this ecosystem is made up by hundreds of millions of users, too. Yes Apple holds a singular power over this ecosystem but that power mostly boils down to the ability to wreck it for any particular group of participants. That's not ownership unless you want to claim that humans own the coral reefs, too.