Jumping attacks aren't as rewarding as other fighting games.
In games like Mortal Kombat and Street Fighter, jumping in for bigger combos is sometimes encouraged if you want to get that really high damage combo. However, King of Fighters XV has many different kinds of jump-ins that make it hard to fully commit to fishing for jumping combos. Also, you don't get much hit-stun from landing jumping attacks, so the chance of combing is slim.