Don't see how it would have been imbalanced. Damn useful is what it is. First thing I'm going to do when the latest version of MiscPeripherals makes it into the Ultimate pack is build myself a remote item request system.
Logistics pipes making it in would be even better. Out of interest, why isn't it in the pack ATM?
The current version of Logistic pipes is done by someone other than the original creator (krapht never ported it to 1.3). It is all legit as far as licenses are concerned, but krapht has said that he does plan to eventually make his own updated version, so the FTB team feels like they would rather wait for the "official" one. Or at least that is the explanation I am aware of, I can not remember if it was from an official source or not.
Very quick EDIT: To clarify the bits about licenses and maintainers is accurate, I am just unsure about it being the reason FTB has not included it.