The US has been talking about making DST permanent, which is very different from cancelling it.
For the unlucky rest of the world it also means that things like public holidays and suchlike either weirdly start and end in the middle of the (solar) day, or alternatively you'd have to specify that all holidays etc. actually start and end not at midnight (UTC), but whatever time actually corresponds to some time in the middle of night, which basically means reintroducing time zones through the back door.
Also the link K2L8M11N2 posted.
It's easier to adjust local schedule than to switch the clock back and forth.