Hello Giorgio
It's true you're right there is a big imbalance compared to jazz music indeed more pop / rock melodist sets would be a plus a rebalancing would be welcome
in + I love pop rock music and I also practice Latin music but without wanting to offend because it is not at all my goal, can say that there is too much jazz? Many yes I do not think for jazz practitioners there will never be too many, and for those who practice pop rock there is not enough.
I wish you good day and good music
balbuena