I would like to know what is the actual reason why they are not available right now.

As shown by the interface if you lag while opening it they are currently implemented, simply flagged to not be on display and so at our disposal.

The reason is the fact 128k points to get one is a too low price for oasis taste or because oasis has no idea about how to unflag them or about how to change the price?

Because i objectively do not see what other kind of 'bug' could be there that requires them to continue to stay hidden and unavailable to us when they are currently there as the other gold and purple runes, but simply hidden deliberately.

Sadly you can't deny lag on our side that temporarily show us the original chinese interface currently implemented that you simply overwritten for translations purposes.