#TRUE
although i'm actually gonna provide reasons >>
1. x4 weakness to stealth rocks.
2. Low defense making it vulnerable to revenge killing via certain priority moves(quick attack scizor and dnite without a dd boost do 50%)(it does however resist other common priority moves such as bullet and mach punch).
3. While it's STAB moves are really good.. the third coverage move you choose leaves you walled by ninetales, gyarados, tentacruel, dragonite, salamence, heatran, terrakion or keldeo(which are all pretty common).
4. With rain and sand easily being the dominant weather choices, volc can have a hard time setting up let alone sweeping.
Not saying volcarona is bad(I heart volc<3), just saying I agree that it shouldn't be number 1 :/