Welcome to the forum
I've driven mostly manuals, but also automatics for work and also the second car because my wife doesn't care for manuals.
I've used neutral at red lights a lot with all the automatics I've driven. Except the Cherokee. Well, I do use it sometimes but this is to get around ESS when I feel like it. Do you have ESS on your TH ? It's the Stop/Start feature that comes with the 3.2L, on 2015+ Cherokees.
Reason why I used neutral before wasn't so much out of concern for tranny temp, but more for that *pushy* feeling when waiting at a red light and feeling the tranny giving a slight push forward when in Drive. I don't have that with the Cherokee because the engine now stops at red lights, so no pushing to worry about...
With ESS, shifting into neutral disables the engine stop feature.
I do use neutral when parking the Jeep, just before coming to a complete stop in Drive, so ESS won't kill the engine before I can shift into Park, which is annoying...
Hope that made some sense
Edit to add : just saw in another thread you have a 2014 TH, so no ESS on yours. If I were in your shoes (or in your TH
I would probably use neutral a lot... and plan ahead for the slow Neutral > Drive reaction times...
My avatar is the Elder Predator
(goes well with my forum status and overall temper
2015 North (Canada) - V6 - AD1
Cold, Tow, 8.4A, 9 speakers with sub