Druids likely won’t top the damage boards with CME at very high levels, but they don’t have to. Even 3-4 attacks with CME is really strong. And still stronger than most martials can achieve.
If I'm doing a Dual Wield Damage Paladin at level 3, I go vengeance: vow of enmity, hunters mark and nick dual wield scimitar.
2d6+3 x2 = 20*.84 = 16.8 DPR and can be kept up 3 encounters. It's impressive.
Most level 3 good damage martials are hitting around 15-16 DPR with a damage focused build and can maintain that for about 3-4 combats. Basically all have an encounter damage buff, a good level 3 damage ability and two weapon fighting.
In that sense Stars isn't that impressive, but moon still is. Biggest downside for Druid damage though is sometimes turn 1 will be significantly lower damage due to casting an action concentration spell when you could have attacked.
Martials all get a decent damage feat at level 4 and extra attack at 5, so I expect martials to ramp up pretty quickly.