I agree not really unexpected, my bank awhile stopped supporting the Windows Mobile app. Which was incredibly disappointing given I switched to that bank just because of the app. It was so darn convenient to use the app, but given the state of WM 10 don't really have any other options to switch to any other bank.
The thing that irks me the most is that UWP will be another example of mismanagement because Apple has announced they want to merge all their apps by 2021.
With a SDK out by June 2019, whilst Microsoft chasing butterflies with PWA where infrastructure is nowhere near ready for complex applications.
Anyway, the merits of UWP have already been discussed ad nauseam and such discussion has already fallen on deaf ears at Microsoft. It remains to be seen what they do with Windows 'Santorini'.