Highlights are just a small part of each player’s game. Unfortunately when you really watch Lambert’s game outside of the highlights you see loads of losing the puck because of hanging on to it until he turns it over. Or if he rarely decides to pass it, it happens almost always too late so his team mate isn’t really open well any more, so he causes also bad situations to his teammates and not just to himself.
He has also awful and lackluster defensive play, which all together with his offensive weaknesses makes him a pretty much awful team mate to play with. I wouldn’t probably draft him at all, but as the NHL has a real hard on for skating, he might even get picked in the first round - which would be absolutely undeserved based on what he really is as a player.