Have you made earlier requests? Are you a marked man???
The T3 having deckers seemed an odd development but I confess, I'd not done the route since Crosville Wales days and didn't know if it was tied in with schools workings necessitating something larger? Still, it is a long established route and whether it goes to Aber or Barmouth isn't something that exercises the mind.......
......... Where there are real flows of traffic, they're already catered for, so apart from perhaps linking Betws with Bangor for some reason, it is just beyond comprehension.
I find it incredible that money is going to be wasted on something like this, whilst other areas that seem like shoe ins, get overlooked. Such is the way of local democracy!
A while ago, I travelled especially on the T3 to enjoy the upper-deck views afforded by the E400 deckers, which had just been introduced by GHA, and although the services I used were lightly-loaded, I gather they were hired especially to cater for the numbers of pupils from Barmouth to Dolgellau College - the 0825 off Barmouth and 1515 return from Dolgellau were particularly well-filled. I presume once the finance had been sorted after GHA's liquidation, Lloyds inherited these buses for the same reason, although it does seem overkill having I think 3 such buses for two flows per college-day!
Re links between Bangor and Betws, I seem to remember there was a Saturdays-only S6 running three times per day between Bangor Railway Station, Bangor Clock, Bethesda and Betws, but that seems now to have been curtailed to run only between Bethesda and Pen y Pass. Perhaps it is thought that there could be a need to reintroduce a Bangor-Betws service on a daily basis? But I share your wondering why it needs to continue to Oswestry.