Sigh. And they're just now getting around to officially announcing it.
Usually only the biggest international signings get announced right off the bat. Smaller signings like this are announced in packs (16 in this case) and can be held up from being made official by an assortment of issues, biggest of which is age verification nowadays. I wouldn't read too much into the delay.
I would however like to at least get a list of some kind of the other 14 players, just for future reference.