It always cracks me up when people think they are proposing a simpler system by ignoring complexity. Is akin to people saying, "why don't we just change the start/end time of schools/businesses instead of changing the clock back?" As if getting companies to agree to when to make a change, and updating all of their documents/signage/etc. would somehow be easier than allowing them to continue to say "open at 8."

For this one, It really amuses me on how they think they would accomplish keeping someone's phone to alarm at the equivalent of 7am when they fly across a nation.

Granted, I still hold the silly view that we should probably change daylight savings time to be a 10 minute change of the clock every month. Up for six months, down for 6 months. Would effectively be trying to tie it to actual solar time, which is what we seem to care about. And would be trivial with modern devices. (Though, no, I don't hold that this will happen.)