Flying the drone was not a worse interruption than throwing flares and stones onto the field aimed at players
So what punishment should we expect for Croatian fans in the Italy vs Croatia game? Launching fireworks onto the field is surely more dangerous than flying a flag. In this case of course both teams and all players were not involved in any of the disruption. But certainly some of the relevant "offences" quoted by UEFA in the Serbia-Albania match could also apply here. One can overlook minor isolated events such as individual flares thrown onto harmless areas near the field, but launching many fireworks into congested areas of the field is more serious.
Again we have the issue that on the one hand, Croatians are responsible for bringing the fireworks, but also Italian security did not prevent them from being fired. They dealt with them swiftly afterwards, but it seems still very easy for these guys to bring the flares into the stadium in the first place.
We just want some consistency and clarity in these decisions. We will be disappointed.
I predict that Croatia will be fined some insignificant amount, around 50,000 Euros, and maybe a few individual supporters would be arrested, but then it will be forgotten until the next match it happens again. What would it take for proper action to prevent such events in future? Does the firework need to hit the referee?