Tbf Vale will have metro branded trains and 4tph to Penarth and Barry. Ebbw is getting 2tph and there's an aspiration to run another 2 to Abertillery. Maesteg only gets 1 (there's long term plans for 2) so it's the Maesteg - Cheltenham that really gets the short straw.I'll take your word for it!
Personally, I think it's a pity if the Metro brand isn't used as widely as possible - if only to show that it really is a South Wales Metro, not a Cardiff one. It also pressures TfW to include lines like the Vale, Llynfi and Ebbw in the list of lines where 4tph is at least an aspiration.
I wouldn't be surprised to see metro branding on Ebbw line in the not to distant future.
