Again,an asteroid never destroyed a SD, it damaged it, and they were in that asteroid field for days. They kill the admirals, because they have better ones. It is not like they didn't try to make the HTL smaller. I said it would be EASIER to pack more firepower into a larger ship. They have starfighters to the chasing.
Yet in Starfleet, the Sovereign class starship could CHASE DOWN an X-Wing at sublight and then OBLITERATE it with a concentrated phaser strike... even though it's over 100 times LARGER...