This is a simplistic view and incorrect. Null mappings or incomplete mappings between two or more contexts will break any semblence of perfect subjective symmetry. Mathematically speaking, the only way to have the same subjective impression of any event among multiple minds is if they are absolutely identical. Even receiving identical experiences for their entire existence in a different order or temporally shifted will break the symmetry.
It is mathematically intrinsic to the type of representational system used in the brain that "perfect understanding" or identical subjective impressions is impossible. Never mind the fact that transaction theory does not allow us to truly guarantee the synchronization of "indisputable facts" even in the case of identical minds; a synchronization protocol that can make facts "indisputable" is not possible, and all approximations of it will necessarily break the symmetry.
In other words, "hive minds" of perfect and identical understanding are actually mathematically impossible. Telepathy is just a different, and perhaps more efficient, transport for the same basic protocol.