It's Trials. People dip their toes into it and just leave because they know it's not worth it.
Not a skill issue, not being a n00b, not even rage quitting.
It's honestly not worth it for a few guns that you can get an equal or better version of outside of it.
As a primarily pve player, a lot of the trials weapons aren't really of use to me. The summoner is OK because solar auto rifles are a bit hard to come by, Reeds regret isn't bad with the right roll, and I do like aishas embrace for certain things but other than that, I don't really care lol. Shayuras wrath is a nice SMG but funnelweb is better in almost every way.