With insurance rates soaring on 22’s I reckon Frank hopes the cadet gets more traction.
The running costs aren’t much more, it can accommodate more American-sized pilots and is just safer than the 22.
Some forgiveness is required in training environments. A smaller, less tolerant and less-crashworthy aircraft like the 22 doesn’t help.
While underpowered, the Cabri’s design is orders of magnitude safer than a 22.
For that premium you may as well also consider a cadet.