With the change of keys and lootboxes in the wake of U23 - what sense is there to have a lootbox weekend?

In older days I hardly found lootboxes (and keys) dropping faster or more often than outside such a weekend. With keys shop only now and just the new lootboxes dropping I find it just questionable to have such an event.

Treasure hunter event points you to the shop, too. But at least you can get the pick-axes in-game. Having lootboxes thrown at you with no more means to open them in-game (once old keys are used) up isn't fun for me.

Will that vendor for older lootboxes that Cordovan mentioned be introduced then at least?