Roberto is %100 right to praise Kenwright, not just because he is his boss but a lot of the issues fans have with Kenwright date back to before the appointment of the new manager, the failed grounds move for example.
Why would Roberto judge Kenright on situations he had no control over or what happened when he wasn't connected to Everton? He shouldn't, all he has seen is record transfares and his targets arriving at the club.
The net spending under Moyes we have to let go, not because its tiresome and boring going over and over it again but because we are moving towards a new era at the moment, playing better football and not just getting current players to sign longer contracts but bringing new players in without having to sell anyone.