Let's really go for a stereotype here. Just let me put my tin hat on...
....right, let's go.
There is a school of thought (and I must stress I am purely the messenger in this!) that suggests men, once they do go on a diet, tend to do better that women on a diet. The rationale behind this is that men are supposedly more adept at tackling things very single-mindedly and treat it more like a job or a challenge, rather than something in which they are emotionally vested in. Anyone who has tried to 'help' a man doing a DIY task may be familiar with the level of focus and refusal to stop until the job is done from the man you are trying to help!
If we accept this as having a grain of truth...
...diabetes is, to some extent, a bit like going on a diet. It requires the same sort of discipline and is a solution to a problem. I would gently suggest that possibly, men may (or may not!) be better at having a more dispassionate response to when things don't do wrong.
I am not saying that women are all 'silly and emotional' or that men are all 'cold and rational'. But it may be that men are marginally better at separating at mentally separating the process of the task at hand from the results. Again, I can't really extrapolate my own experience as being definitive but I know that when I go on a diet, I end up going at it very bull-headed and bloodyminded and grimly plod through until I achieve what I wanted, whereas my girlfriend tends to start these things, get fed up quickly if she doesn't quite get the result she wants, and then revert back to normal.
I can only really pass judgement on my own personal experience of my diabetes. I just know that I don't get hung up on times when things go wrong, and I'm not in the slightest bit bothered when people suggest the ideal A1C is lower than what I am currently achieving. I find taking this attitude makes it far easier for me to manage my diabetes. It may be that if you have the same attitude, regardless of gender, you will also find it easier, and it may simply be that a higher proportion of men tend towards this attitude, which may be biological, or it may be cultural.
Either way though, we've all got a thankless deal and anyone taking on this fight deserves whatever support they need to get through it.
Once again, PLEASE don't shoot the messenger, I'm just exploring a theory.