Counterargument: The Fleet Mark events, with the mixed levels, is working exactly as it SHOULD, since it is NOT AN INDIVIDUAL EVENT.
The flaw in your argument is that group events are predicated on all members operating as a group. If you are expecting to be carried by others, you are treating the event as an individual event, not a group event.
I freely admit that I often behave in just that way, expect to be carried because I don't feel like participating in something tedious but want the rewards to keep assignments queued. I don't seek to pretend that's anything other than a selfish impulse, and I wouldn't behave that way if the system discouraged it.