With no winds they might, and I repeat, might have enough altitude to reach Teterboro. In no way would I recommend that based on the altitude available, NW erly winter winds, and surrounding areas.
Westchester is about 10 miles to the NE, and might have been reachable, but again, not a choice I would recommend at this low altitude.
This is a decision that had to be made in a matter of tens of seconds and they look like they made the right decision.
I miswrote earlier. Their position was over the green area just east of Bedford Park, over the Brooklyn River Parkway and Webster Ave area, at their peak altitude.