I flight EWR <> SFO about 5 times a year and just noticed that is has become the "p.s." route which means that there are no longer complimentary upgrades at any premier level. Is this a permanent thing? What is the point of having this? Seems kind of strange that they would block just that route.

Here is the site, though it doesn't really make it clear "why" this is the route and what that means.

https://www.united.com/web/en-US/con...-services.aspx