I wouldn't be so sure about that, the crowds at Sampdoria, Torino and Pescara's games remained practically the same both when they were tearing shit up in B and this season in A (they were decent crowds though, 20-22k for Samp, 13-16k for Torino and Pescara). But apart from Hellas Verona all of the teams in B this year have awfully low attendances, no sense to single Sassuolo out, all of the other contenders have the same attendance as them.