Not for me. I prefer timekeeping libraries to not have to be changed. Ever. If they have to, should be simplified. If simifying, it should be in a way that doesn't cause grammatical issues.
Which this does, because now DST is now the standard time.
Nothing about timekeeping is simple, with or without this change. Not only do some regions already not observe DST (even within the same state/region); some switch to/from DST at different times of year (and this date changes from year to year).
For a timekeeping library (which likely uses a system-level source of data / the IANA tz database) this shouldn't have any effect.
Which this does, because now DST is now the standard time.