Warning: This article contains spoilers fror9-1-1season 7, episode 1, “Abandon Ships.”
At one point he’s asking Santa Claus to bring his mom back, Minear tells EW.
So he was just very guileless and wasn’t blaming Shannon for anything.

Oliver Stark and Gavin McHugh on the ‘9-1-1’ season 7 premiere.Disney/Chris Willard
He just wanted to see his mom again.
“At the risk of sounding like a very stereotypical mom, he has just come into his own.
He’s so hilarious and sweet.
We just reconnected immediately.
Ryan was on set that day too, and so we had a very sweet family reunion.
So I think he feels doubly abandoned, and I think he’s conflating those two things.
And, of course, Buck feels a familial duty to both those guys.
He feels almost like an uncle or a second dad to Christopher.
I thought [it was] a great way to reveal corners of the dynamics of that triad.
We’re going to see a little bit more of him rounding the corner and showing his funny side.
But will we see Shannon pop up more as the series continues?
“We don’t know, but I’m game for all of it.”
9-1-1airs Thursdays at 8 p.m. ET/PT on ABC.