Is Emergency Build useless?

[Gryphin]

I've been practicing using some variation of EB up through the first 10 turns. (Using FMQ 1.13).
As pointed out below it is a Risk / Expansion trade off.
So far I find I'm running out of resoursec within 5 turns. (unless I'm very lucky). By that turn I have reached Applyed Reasearch II. I put the systms on Facility Upgrade. If I get hit at that point I should have at least 3 Space Base Yards to put on EB. They can produce a Weapons Platform in 1 to 2 turns Each. 3 Frigate with early weapons will be hard pressed to survive the WPs.
(this is VS the AI set up 2 to 3 systems away)
Against humans, it could be ugly.