Yeah I see what you mean, makes him more of a side / background char in ways otherwise. I think he had some understanding, if i recall (been awhile since I read) he picks him up after he meets with his mom at the diner and it's kinda like he knows that he just experienced what he had known for years. So felt more like a silent understanding scenario
I don't mind that at all just wish he did more in the plot is all. Like step in when Callums mom lashed out and tell her off making it clear he won't let her sabotage Callums future.
Mylos mom really was a fun character and really balanced the strict yet supportive mother. Especially when she meets Baxter