Why is the UFT holding meetings for ATR teachers in all 5 boroughs?

Readers of NYCATR already know that the UFT will be holding a meeting for ATR teachers in each of the 5 boroughs.  Perhaps the UFT is doing this--rather than holding one big meeting in a central location--for the convenience of the teachers.  Or perhaps not.  Here's a thought from a blog called New York City Eye:

Some developments suggest that the UFT is dampening potential groundswell factors. 

First, the meeting was to be a single one, at the Brooklyn Marriott offices of the Brooklyn UFT. But a single site could seem too much agitation for Unity.

[So],the UFT split the meetings into successive nights: October 3 in the Bronx, October 4 in Brooklyn, October 5 in Staten Island, October 6 in Queens and October 11 in Manhattan.