Well, three things surprise me there!
Glasgow-Falkirk does not surprise me, for that route hasn't really dated. It could, by now, do with a bit of embellishment, but it's still an enjoyable, driveable, realistic layout - especially if you place the AJS passenger enabled stations and place a couple of portals at the Falkirk end and generate a bit of AI traffic.
"Much-maligned" Stranraer route indeed! Not that many people maligned it - I still run it now, only its part of a long merged route!
Why Devnet spurned your offer of a new route is pretty baffling! Just hope it doesn't put you off route building and that your creations find their way for the rest of us to download!
All the very best to you Vern!
Ian