I imagine most/all of the epic devs code in C++ so can’t imagine there’s much enthusiasm to add another language.
In all honestly the C++ in UE4 really isn’t that hard to grasp if you can code already in a different language, just got to get your head round some differences like pointers and when to use :: instead of . .If you’ve got vax it usually corrects it for you anyway if you use wrong symbol. If you want an actual real programmer job at a big company in the gaming industry they usually want C++
This isn’t me being a ‘arn’t I so clever’ boast, quite the opposite, I’m not a professional programmer and I’m a bit of spanner and I can get my head round it. Nowhere near the level of someone like Mr Xavier but enough to make gameplay code and do what I need to. You can do it too if you just try 
Try one of Tom Looman’s C++ tutorials and you’ll realise its not as scary as you thought it might be.