I think it does have the same supply restraints though. Whether players get data through relog-fests or what-not, it's slow going. Meanwhile, just like the last Colonia CG, you'll get the periodic market resupplies. Provided people are just waiting for that respawn, without invoking @Ian Doncaster levels of market knowledge, the gather rates should be roughly equivalent.Becuase it's a competitive CG against another CG without the same supply restraints. Even if more players support it, if the supplies run out, the other side wins, and there is nothing players can do about it. That's bad game design.
tl;dr one (data) has a slow, constant gather rate, the other (trade) has larger, but peaky gather rate.
EDIT: I'd also argue that there's actually no requirement for the CGs to be fair anyway, and an asymmetric competitive CG which is well balanced is superior to a straight-up "two identical CGs, just pick who you want to support"