I'm pretty sure the Flak really is better in the beta. Did the Flak itself get buffed or just the targetting?
I'm still not sure if this will finally let the Flak be viable.
I tested this and the carrier EVEN with the 75% penalty builds the SC in less than 30-35 seconds. ... gah what was the whole point of the penalty IF it just added 15 seconds on to the build time? Fighters are actually durable and you actually don't lose that many in less than a minute.
Add another 20 seconds to the SC-build time along with a speed nerf (that inside-info, a developer agrees with) then we can call it even.
Remember: Bottom-line, people should be able to withstand SC without having to counter with their own SC. That is what Flak should allow (if they are spammed) and what a additional nerf to the SC build time will allow.