seems like you are not aware of the situation.
Yes we cannot deny docing rights of IMG players on IMG bases(But in T44 we can do that. Station belong to us, not our fault that this ship only sold in Tau 44....). But tho IMG removed our rights to dock on IMG bases, so do we. If you think that its the "one-side" thing, better think again. Still now situation is the same. IAF is neutural and are not welcome in Tau 44 untill they wold start diplo negos with us.
We are not denies their acsess to the Zephyr, they are not welcomed in Tau 44. Thats it.