Besides Zegras and Rossi I really do think they are, none of these guys are at the level of Jack is right now.
They are prospects that might reach the NHL one day. Its a gamble that has to go both ways.
Granted Kakko and Kotkaniemi already made the NHL but other than middle 6 ceiling have not shown much, so yeah they are in.
Zegras and Rossi are the two top 6 centers their management must gamble on, but still you are trading for Jack Eichel that will have a 100 point season soon.