Well, no, of course not, when compared to something with real power. But I wasn't comparing a gate to an engine that requires fuel. I was comparing a gate to what it did before the update. I remember hearing the line above that a gate will be 'marginally faster' than a hot redstone engine, and maybe that is, objectively (a difference of 0.1, perhaps, in an obscure calculation), but subjectively I don't think of twice as fast as marginally faster.
So what you're saying is, "Everything went better than expected." Because I sure am happy about how I can use the new gates connected to a void pipe to keep inventories from spilling.