I appear to have already missed the boat on bozja

[Driavna]

Same. Lost actions are only useful if you intend to do more Bozja. They're not an interesting thing to collect on their own because they're useless everywhere else.

And we are going to be doing more Bozja in a new raid (5.4) and a new area (5.5). In any case, lost actions make all the difference (even basic ones) and are the main point of the zone. Even Yoshida requested players to use them during a live letter.

I'm guessing that something similar will happen to the new normal mode raid if its difficulty turn out to be the same as Castrum (having DPS checks). Once the players that care are done failed runs will be the norm.