Don’t apply common sense to government plans Brydo…it’ll end in tears.
Even if Westminster sends the full funds, the Scottish Gov can decide how its issued, so, if they say no Motability to over 65’s (which could be a cock-up, they simply forgot, or could be they think that’s fair as you are no longer of working age) then yes, they can easily do so.
My take on it is it will not continue past retirement age unless the documentation expressly states it will. And yes, its a huge blow to the disabled if they lose the mobility component on retirement – especially if you have complex mobility needs such as an adapted WAV.
In life, it's not who you know that's important, it's how your wife found out.