I submit that the appropriate response of the man in uniform representing his company should be something in the line of “Sir, that was an unfortunate accident, I am sorry for the distress I caused her, her children and the passengers, now please sit down as we prepare the plane for take off. If that didn’t diffuse the situation and the male passenger did not resume his seat, then the male passenger should have been booted off the flight.
I understand the pilots response, both guys were displaying school ground behavior at some level. I bet the pilot read the FA the riot act in private. It truly is the FA’s job to defuse situations, not ramp them up.
Baldie seemed to think he was in charge. I thought pilots outranked flight attendants.
It seemed like they might have been continuing a previous conversation that had not ended well. My sense is the employee was feeling very defensive and threatened. Now possibly because he knew his actions were indefensible ...but also possibly because he was afraid of being mob-judged...which seems a very reasonable fear these days. But this is speculative. Another story was saying that the woman had gotten permission from one employee to try to find overhead room for the stroller, but that the guy went onto the plane and yanked it away from her.