I would have to agree. I played a solo SP in competitive arena until a few weeks into Season 3. In my experience, SP is always first target which indicates squishy. Fear is all but usless anymore and they have zero survivability. I have retired my SP from hardcore arena due to continual frustration and now just do 10 games a week for fun and a few points. I shutter at the thought of 5 SP's in Arena.

That's not to say I wouldn't love to see a 5 SP team succeed. My SP has always been my favorite toon to play and it's a bummer that they are currently gimped in arena.