I reckon it’s a case of his ego ruling his decision making. Probably backed himself to get in the Spurs team ahead of those players.I don't - he wanted gametime/exposure and he opted to sign for a team on loan where he should have known he wouldn't get a kick.
I get we weren't an attractive proposition but for his situation - us vs Spurs on loan for a few months - it should have been a no brainer.
Modern players aren’t exactly known for their humility.