Only 18 and his club pressing for promo to premier league. Not many 18 year olds playing in midfield in championship. Judge him at 20.
Lots of talk here recently on how 18-20 is considered the age in the UK that young players fall behind. Up to that age often are at a similar level to players in other European countries. But then they stagnate. Don't get opportunities in first team squads and the reserve/U21 league is not a good standard. If he isn't getting first team football I think he should leave.
He needs to be playing in a starting XI. That does not look like happening anytime soon at Burnley so he needs to put pressure on management to loan him out to League 2 / Conference to gain that experience, confidence and match fitness.