The UK is exceptionally parcimonious and tight fisted in Awarding and supporting PSO routes by comparison to competing economies.
Imho and it only an opinion Flybe operations retain one of the failures that dogged BA Regional for decades- having competing routes and hubs at both Manchester and Birmingham ; They really should focus on one or the other to strenghten the overall offering .
Further those Scottish remedial slot services probably aren’t performing that well either especially if they are carrying large numbers of Codeshare ticket holders at pence in the pound; That’s the exact formula that lead to British Midlands demise!