There is no "fuN" in RNG upon RNG upon RNG. Its just frustrating, and when you finally get something, its either often still just crap. You don#t really feel excited when you get something good, or only a very short amount of time. The prevalent feeling is relief when you get something, but only for a short time, and frustration most of the time.
Thats not "fun". Thats the exact opposite of fun.
We had much better systems in place that made character progression. valor upgrades for example. They served the same purpose as WF/TF (make you stronger), but you could actually pursue them in the way you wated and made you feel like you are actually steadily progressing. Combined with Reforging, which meant that you could make an mediocre item an upgrade for you, this was a very rewarding and fun system.
The current system on the other hand with piles of RNG upon RNG upon RNG is just plain stupid and not fun.