I disagree, I think Dávila is by far the best player in the side and would be a far bigger loss than Devlin. Dávila has 12 non-penalty goals and 10 assists in the last two seasons, in comparison to Piscopo who has 2 non-penalty goals and 5 assists. Taking into account minutes played, its 175 mins/GA for Dávila and 285mins/GA for Piscopo (308mins last season and 254mins this season).
As a point of comparison, David Ball has 17G/A (216mins/GA), Sotirio has 9G/A (229mins/GA), McCowatt had 3G/A (424mins/GA). Amongst the strikers; Waine has 7G/A (169mins G/A), Hemed has 6(non-penalty)G/A (166mins/GA) and Hooper had 12G/A (92mins/GA).
Dávila provides numbers close to the strikers, and the only player in the last two seasons he hasn’t kept up with has been Hooper. Piscopo’s numbers are improving as he develops, but I still doubt he would fill the gap left by Dávila. As a side note, it also highlights that Hemed has not been the same quality as Hooper, and given their respective CVs you would expect it would be closer