Besides, that thread in its entirety has so much more than just "a heal cruiser" in both the OP's continued build posting and the general discussion.
I know as much as I wanted to just pick some skills and go shoot things, reading both others' build ideas and their opinions on powers motivated me to explore them in a little more detail when training my boffs and slotting them in my ships. You can still pound out solid DPS in a cruiser, but you can also play to its strengths and support the team. You won't have the burst, as noted in posts above, of an escort, sure, but *shrug*. You can still be quite strong.