I only really RP Horde side on WrA so I’m not really good for comparisons. I can only speak for Horde Wyrmrest Accord.
But no, nobody really uses the groupfinder for one shot RP scenarios like that. Instead scenes tend to happen ‘organically’ based on relationships formed IC or people hosting public events. It can be harder to find if you aren’t regularly RP’ing in certain places, meeting the same characters consistently, or not on any of the relevenat Discord/Tumblrs.
You might want to check out the following though!
along with…
I’ve seen them on Youtube, though. They seem interesting. I’m sure if you created some on the server and advertised it, you’d get some interested parties. It’s just not really a part of server culture.