I mean they should by rights and moral practicality, however we know how this will likely go.
But it's correct the packs are skewed and we've not had proper shots at items in packs opened in fairness, thought it was fishy when I've had Leicester kit about a gazillio times, ok maybe only 10 but barely any others it's seemingly the same kit pool all the time.
But missing half the database of kits would contribute to why this is.
I'd say it's quite a big issue tbf more than many consider and most would overlook, but early on had these items been in packs some would provide good coins others maybe not but instead we get to discard discard kits numerous times....