Is there a correlation between the two events? The timing of this seems a little weird. The meeting has been postponed due to council member Nick Licata being out of town, and Uber seems to have strategically released their driver information in the interim:

"It remains our position that caps on drivers have nothing to do with safety. We are only now releasing these driver numbers to illustrate to the Council that this legislation will kill ridesharing as we know it,” Uber’s Seattle General Manager Brooke Steger says in the release. “In the face of steady or increasing taxi revenues, the Council is still choosing protect the taxi industry over the tens of thousands of their constituents who have called on them to remove the caps.”

The meeting has been rescheduled for Monday, March 17.