well actually Marchetti was right to protest, it was a lean on, Peluso hindered the Lazio defender to jump.
Lulic was glued to the grass
it was a very slight lean on and, let's be honest, we would need to deduct like 20 goals per each forward around the globe if we're nitpicking like that considering the frequency of similar goals happening. it's impossible to avoid all contact in such situation, fair. also, if Lazio would've been the one scoring that one, i'm sure there would be zero controversy talk... predictable and not that i don't understand it