Because I like to embrace the crazy.
To be Jade Falcon is to be more then a little on the insane side. Everything they do is just that little bit over the top, a little bit melodromatic and a little overdone for the sake of it. Unifroms, BattleMech designs, colour schemes... you name it. And it goes further then that; their heroes have been the ones who were crazy and unconventional and made it work.
In addtion, they are amazingly flexible for a supposedly conservative Clan. They change when they need to, and adapt to new circumstances. They made a Lyran-Born man the head of their merchant caste, and let him restrucutree their economy. Aiden Pryde got so good at Death from Above attacks that they built weapons and 'Mechs specifically to take advantage of that. At the same time, they don't shy away from what they are; if everyone else wants to paint them as the bad guy, then they will be the most terrifying bad guy you have ever met.
Also, Elziabeth Hazen is a total badarse
Also also, snappy green everything