Right, but very few people living in the continental US[0], when presented with a timezone dropdown, are going to expect to see anything but Eastern, Central, Mountain, or Pacific. If they do see a list that has city names, they'll be confused that their city isn't mentioned, or that they're expected to pick a city that's in their timezone but possibly geographically distant.
Personally, I (living in SF), use the "PST8PDT" named timezone; it just makes more sense to me than "America/Los Angeles", which is 400+ miles away from me (even though historically we've always had the same time as LA... as far as I know).
[0] Yes, there are a few places in the continental US that don't follow the "normal" 4 timezones and their DST schedules, so there are exceptions; specifically calling out those cities/locales is necessary, at least in those cases.
Personally, I (living in SF), use the "PST8PDT" named timezone; it just makes more sense to me than "America/Los Angeles", which is 400+ miles away from me (even though historically we've always had the same time as LA... as far as I know).
[0] Yes, there are a few places in the continental US that don't follow the "normal" 4 timezones and their DST schedules, so there are exceptions; specifically calling out those cities/locales is necessary, at least in those cases.