I think it is very "trainable"
Most of JM style is right hand rithmic stuff.
It feels very dificult in the begining, but with practice it just comes out.
Like Stop This Train. You need to keep the rithm going, no matter what

In the Cross vid, he uses a mix of picking, slaping, left hand muting, palm muting and leting ressonate.
It IS hard for beginers, mostly because of the use of a pick and focus on left hand technique.

I suggest you drop the electric and practice first on the acoustic. It will help you get the proper "touch", prior to using effects.
And practice dude! A lot!