I wouldn't call it rare. A lot of the first run fuzion are pretty stable and I've got pink opaque lucid first runs that I first tested before release and then stocked up on. When new I can toss those things in very big headwinds and they always come back. In calm conditions it's just crazy how overstable they can fly. I have a lot and have thrown even more, I find a decent amount of stable ones. Usually you need to beat up a bio a little or get those fuzion shield stamps to find it really flippy. Some of the lucids are too.
I almost always find people throwing a trespass flat or with anny and then they complain it's too flippy for them to use. It's not that stable of a disc where you can throw it like beefy star destroyers and I think that's where a lot of people get issues with it. If you throw it more like you would a katana and give it some hyzer and let the disc do the work you can usually get great distance lines. I sent Mike C my only bio fuzion trespass at the time so he could review it and he was throwing that thing like it was made to be tossed. Got big distance and big sweeping lines.
Anyway, on topic for the people who did think the trespass was too flippy for them you got the Enforcer coming in a few weeks. For those that just wanted something like a giant...well throw a giant.