Caps vs bombers will be a much lengthier engagement. Coupled with cruise drain, it would be downright horribly long.
And your EK example wouldn't really work, because:
a) EK'ing out of cruise means you're only heading one direction. Means that as soon as you're in it's weapon range, you're dead. Also means that if they're chasing a battleship which is at full speed, they'll need to read the future in order to position themselves correctly.
b) if the bomber strafes while in EK, it ends up in impulse, and won't be able to throw a single Snac at the battleship, especially if it's at a full speed.
And what happens when the Thruster gets missiled off?