Finally got settled in my new place, so I'm playing again.
My only problem with using any Choice Normal-type spammer in this tier is that you can't just Pursuit the Ghosts away to beat them like you can with Fighting-type spam, you need to deal with the very viable steel, rock, and plain and simply bulky Pokemon. All Fighting-types need to deal with are various Poison-types (besides the Pursuitable Psychics and Ghosts) and most can either carry Reckless Double-Edge or a super effective move, such as (Iron Fist boosted) Ice Punch, Earthquake, or STAB Psycho Cut without making too big of a sacrifice (where as P-Z needs to spam a weak ass Dark Pulse). The Life Orb set is the most threatening in my experience.
It wall breaks well, but not any better than other attackers with similar Speed / Power; there are some with arguably more that aren't being discussed. It's stupidly frail and vulnerable to priority and not quite fast enough to polish teams off. With Mach Punch, Krow / Absol (with Cress around, everyone should try and use this monster), and various Scarfers around, I don't see it sweeping.
If I was still on the senate / whatever we are currently doing for suspects, I'd vote against banning it.