Hi @Naim Aoun I went through this subject for weeks, I have the JL with Mopar Lift kit and FOX suspension, I did multiple jumps, hit many ditches, drove 110+ km/h off-road, 20,000 KM and so far so good.
The reinforcement was mandatory with JK the minute you go off-road as JK axles were very thin and very weak, the axles in JL are stronger and last more but still vulnerable. I have a friend who bended his JL axles after more than 70,000 KM of extreme off-roading. He went to police, got accident report and all was covered by insurance. Breaking the axles will for sure be covered by insurance off-road coverage, its just the hassle you will have to go through getting the car out of desert in case it happens.
The agency has the reinforcement kit which will cost AED 5500+ which I think is too much, you will find after market kits for around 4000 but I think its too risky as they have to remove the whole underneath setup, weld the kit and then return everything back, they might fix things in a wrong way in-addition to a possibility to cause warranty issues later as the car got modified outside agency.
Conclusion is make sure you have insurance with off-road coverage and that's it.
Enjoy Jeeping 😉