Samurai's pretty good. Is it part of the speed run meta? No, but it can do all content fine, and with a lot of safety thanks to your gap closer, your jump back, and your third eye>mercy.

With those tools, and the fact your DPS is naturally high, you can fit almost anywhere. Others may groan at the sight of you since it means their DPS won't be as high, but raid-wide DPS will be just fine.