I wonder... Could you get a friendly booking clerk at a station to sell you a platform ticket for one of these awkward SWT stations, and then walk up and present it? That would certainly be fun!
Simply put - no.
The ticket issuing systems will not allow you to issue a Platform Ticket for a station other than for the station it is installed in.
E.g. Liverpool Lime Street can't issue a platform ticket for Winchester...
There are a few oddities with Platform Tickets, for example, Moorfields station has two entrances, one called Moorfields, one called Old Hall Street, but both the same station (MRF). However, on rangers/rovers/platform tickets the machines at Old Hall Street print 'Old Hall Street' not Moorfields or Liverpool Stns...
It was the same for James Street (Water Street Exit) until they removed the TIS and just had RSP4407. I believe this is the only place that
SOLELY issues paper handwritten tickets.
Same for travel agencies with this equipment, e.g. you could get a STAR Machine and the location may print as 'John's Travel Ltd'.