Can someone explain the grade 5 Hunter's Call Emissary

I am a pirate legend, mostly from solo slooping. I don't do a whole lot of pvp, and tend to avoid other ships if possible. That being said, I have reached grade 5 on Hunter's Call emissary 3 times now. Each time, I have set sail for the Meg marked on the map and twice it disappeared as I got close. Once, I saw the Meg, but a skelly sloop, a skelly galley, and a player sloop all showed up almost instantly. Is thus normal or do I just have really bad luck?