It is always good to gamble with different coins.
Some users may have a high amount of Tron and may want to gamble with Tron.
Personally I see no much difference gambling with different coins, and I always prefer BTC myself.
Yes I agreed especially if you are a real gambler you will enjoy everything in there, but just like you
I am much preferred to use Bitcoin in gambling, rather than any other gambling site like Tron.
And TRON network was only applicable for tron fanatic that's why they used their site.