Presumably Apple is obligated to support everything on everything, simply so it isn't seen as "demonstrating its might".

Apple has said no to technologies like Flash, USB3 and Blu-Ray for their own reasons and only for their own devices, which is part of how they make those products good.

If they begin supporting every feasible technology just for the sake of not being a bully, then their products will start to suck, they will lose their customers and the power they've been giving them, and then a new kingmaker will arise. The cycle will continue.

This is an argument for making technology independent of the products that embody them, which is not realistic.