The Vasari "Phasic Transmissions" research can increase the fleet cap by 20%. It does not however allow you to exceed the hard-cap of 2000 defined in gameplay.constants. This makes the final logistics tech, "fleetwide-wide communications" not only useless, but actually detrimental. Since the previous logistics research, "oppressive taxations" with the "phasic transmissions" research gives 1680 * 1.2 = 2016 cap, which becomes 2000 due to the hard-cap. So researching "fleetwide-wide communications" will give solely an upkeep increase without any benefits whatsoever, provided that "phasic transmissions" is researched, and visa versa.
This hard-cap made sense in the beta, where fleetpoints were generated by planets, but now that it is done by those researches, there is an effective cap already.
But why is it still there now?