Ask them if Jojo had yanked the DBs jersey so he almost fell and Jojo had then had 3-step separation, caught the ball and run it in for a touchdown. ....

What if he ran straight out of bounds, upfield, then come back in and caught the pass?

Should that also NOT have been called?

No. Rule breaking should be called always ....but ESPECIALLY when it is solely and singularly responsible for the outcome of the game.