You're looking at the wrong stats. Gerard Deulofeu's been insane in Serie A for the last 2 seasons now. He's got better with age. This signing would be the equivalent of taking one of the side's below the top 6 talisman (Zaha, Trossard, Maddison type signing). Would be an incredible business for Villa!
2.73 chances created per 90. No one comes close to that in the whole of Serie A. Only KDB is better in the PL at 2.94 chances created per 90.