A general thought about actual male puberty compared to going through the puberty of your preferred gender (if this is the correct terminology for injecting testosterone to promote secondary sexual characteristics like facial hair, increased muscle mass ...)
When boys first start puberty they are faced with not only body changes but also mental changes that are part of the effect of testosterone. These changes might include a tendency towards violence, rage, risk taking etc. Mothers, fathers, siblings, friends see these behaviors, react and apply small course corrections. Gradually, over a period of years, the young man taught how to integrate correctly with general society. Men are stronger more prone to violence but this is largely tempered by societal norms that are learned through puberty and adolescence.
Contrast this with someone who decides to inject testosterone later in life. The testosterone has the obvious side effects of promoting secondary sexual characteristics but does it also also bring with it a tendency towards violence and risk taking? If it does, the person injecting the testosterone will have had none of the usual societal corrections that would have normally occurred during puberty.
The point about male puberty also carries over to situations that men observe or are involved in as they grow up. The male lawyer seems to be 'rage baiting' the woman - using language that is intended to further trigger her anger. Men learn about this behavior from an early age in pubs and clubs. They (mostly) learn not to be dragged into pointless arguments.
Not having through actual male puberty may mean that the female lawyer does not have the life experience to step back and recognise that she is being deliberately wound up.
Puberty is not just about the secondary sexual characteristics.