It's not always as simple as that though.Carlton in 2024 (per Footywire):
Points for Vs Top-4 opposition (7 games): 100.1 points per game (#1 in AFL)
Points for Vs Top-8 opposition (10 games): 91.1 points per game (#1 in AFL)
Carlton were ranked #1 in the AFL for points per game against both Top-4 and Top-8 opposition in 2024. So you can ignore games against the bottom 4 and Carlton maintains a very strong offensive profile.
Geelong finished top 4 for points scored in several seasons where the forward line was a weakness.
The burden goes on other players to be more attack minded and not be able to support the defence. High points for and against can just end up a readout of an attacking game plan.
It usually gets found out in finals, as it did for Geelong on many occasions. Having a fleet of small forwards who can create, pressure and score makes a critical difference. It is tougher to score as many mark and lead goals in finals.