I come away from STFS a bit confused about Katra-storage, ie is it a routine procedure for Vulcans (even if it's not normally put back in a cloned body!) and if so, why isn't Starfleet more aware.
Katra-storage was not a routine procedure and katra-transference to someone else even less so. Until the 22nd-Century, many Vulcans even believed it was just a myth left over from ancient times.
And although Vulcans are one of the founding members of the Federation, not everything
about them is known to non-Vulcans.