I think he just needs more time to mature and realize that he source of money is not endless. Maybe time in other championships and other cars would have been more beneficial i.e. staying in Group N, S2000 and S1600. I.e he could have had a lot more bang for his bucks if he had done...
PWRC, JWRC, IRC, Irish Tarmac, British, Finland... so many opportunities, and pretty much do a rally every weekend. Great to get his experience up, rather than pouring it into a WRC program when he is so young