mrkgnao: Before the NAS, the wishlist scheme was different and not so dependent on the catalogue.
I have no idea whether this is intentional or not, but five glitches sound a lot me, so I would guess it is intentional, though the intention escapes me.
HypersomniacLive: That's why I also mentioned "oversight" (in place of screw up), as there doesn't seem to be any logical intention behind such a choice.
Does MaGog show the prices for these five games?
Yes. Of course. Except Nekro, since MaGog only deals with games that have a game page.
Which draws my attention to another thing all five have in common. All five currently do not have regional prices. I believe this might be the reason they are marked as they are, for the pricing information is not yet finalised. I expect once the regional pricing is defined they will become more visible.
Other TBA games (currently "Crypt of the NecroDancer" x 3) already have regional prices and accordingly can be viewed in the wishlist.
UPDATE: On re-examination, I may be wrong, for StarCrawlers can be viewed on the wishlist and it too is still without regional pricing.