he's a KID.
He'll say anything for unlimited game time.
or candy.
or ... whatever else he's being allowed that 'all the other kids have' over there.
It's just another route ...
either your ex is manipulating him by being so lenient
(we all know how that goes - playing one parent off another)
or he's sayiong what he thinks his father WANTS to hear.
Anyhow - he's a KID ...