Definitely not overrated, but I reckon the old saying "Too many cooks spoils the broth" comes into play. They've got a lot of genuine A-Grade talent, people who aren't followers - it may seem like a good problem to have but if you have too many of them everything falls apart a little bit, you need genuine role players.
No good having Coniglio, Shiels, Kelly and Ward if they're all attacking the same ball, or Patton, Cameron and Lobbe if they're there to take marks, kick goals and put on minimal pressure. Hawthorn showed the idea of having foot soldiers to compliment stars; a back line with genuine talent who take the risky kicks or clunk the risky marks (Birch, Lake, Gibson), but also sturdy players who never did the spectacular but defended grimly every game (Guerra, Duryea, Stratton). Honest defensive, hardworking midfielders (Shiels, Sewell, Lewis, Simpkin) to compliment the elite (Burgers, Mitchell, Hodge, Smith). A genuine superstar forward line (Roughy, Gunston, Breust, Cyril, Franklin) with hard working, hard tackling players or honest resting ruckmen who did what was needed every game (Poppy, McEvoy, Hale).
To be fair, our superstars all did the 1% work and the tough stuff too, but the threepeat Hawks and Brisbane sides are outliers and there won't be another side like either of them for 50 years.