One of the questions will be "Why am I not allowed to do the Bertie course till next May?. ther looks to be a lot of good stuff in there.
I can think of a couple of possible reasons for this. The most likely (in my opinion) is that new adult T1s often have a honeymoon period, where their pancreases produce a bit of insulin for a while. They may be hoping that after a year your wife's insulin needs will have stabilised more, as it's common for insulin needs to change in the first year. Maybe they are afraid that if you do the course too early it'll be too hard to calculate your wife's ratios because they are still changing?
In any case, you seem to have made
a lot of progress. Getting the right basal and calculating an insulin to carb ratio are both important steps, even if you have to tweak your figures.
As for your current issues, there's a whole list of things that can make insulin needs go up, including
1) illness (eg a urinary tract infection can be symptom free but still push your levels up)
2) problems with a faulty insulin pen or insulin
3) problems with injection sites (long term T1s sometimes build up fatty deposits that don't absorb insulin well)
4) change in insulin needs due to honeymoon period
5) reduced exercise
6) stress
There may be others as well, that's just the things that occur to me off the top of my head. And sometimes things like the weather can change people's needs as well.
Good luck for the appointment next week.