Let us look at the list of units.
Frigates
=Scout
=Light
=Colony
=Long Range
=Siege
=Flak
Cruisers
=Carrier
=Repair
=special
=heavy
As we see, other than Light frigate, long range frigate, Cruiser carrier, and heavy cruisers, others are ALL support units (you may argue that flak frigate is also direct attack unit, but IMO it is more of specialized unit countering strike crafts and sometimes cannon fodder)
Regarding the fact that capital ships are also mostly support ships, the proportation of direct/support is too extreme. So we have like 7 kinds of support classes while have only four direct classes...
Still I like all of support frigates and cruisers, I'd rather think the capital ships should be more direct (nerf on abilities, buff on stats.)
-wnmnkh-