The number of hoops to jump through to get proxies up and running can be quite cumbersome and difficult to explain to newer users.
-Exit Premiere and open Media Encoder
-First create an encode preset for your file,
-Then create a separate "ingest preset" and nest that encode preset inside the ingest preset.
-Save that, but Premiere Pro is ignorant of this so you have to "Export" this preset to some place on your hard drive
-Open Premiere and then load your ingest preset.
(not sure why this can't just auto populate with all your media encoder ingest presets... also no way to delete presets from this list.)
-Finally make your proxies and hope media encoder doesn't crash in the process.
What I would like to see is a much less roundabout way to make proxies in Premiere:
-Select clips you would like to make into proxies
-Launch a dialog with all of the normal media export settings (codec, size, etc) with a few extra toggles specific to proxies (like save next to original media in /proxy etc)
-Proxies generate in the background (preferably in some BG process and doesn't launch a lengthly "Creating Proxy Jobs progress bar," The creating proxy jobs dialog can take 10-20 min to go away with a lot of jobs and kind of defeats the purpose of doing something in the background in Media Encoder if you have to wait forever for the encode to even start! You can't edit during this period and it seems like a huge waste of time.
Proxy workflow hasn't really been improved much since it came out and could really use a 2.0 polish pass!