For those that don't play the game, just ignore the post without voting.
Now, I have been playing this game for like 10+ years, and this is a first for me:
Level 63 (had two TDs and re-created catacomb), also with updates i re-created catacomb @ level 49 to remove Soften the Sneaky Shell, however, I am level 63 (after re-creating catacomb for the second(2nd) time falling into a TD) and have these objectives active:
Pinch of Evil (level 6+ requirement)
Treasure Pest (level 13+ requirement)
Ambush (level 16+ requirement)
And I am level 63 (only 8 levels from Master Quest for a Samurai) and basically 45+ levels higher than the requirement(s).
https://prnt.sc/-YSz1Qbg4fRZThus this suggestion is in relation to "increasing" the spawn rate of objectives so that you can have a higher chance to "complete" that objective within their level range or activation.
Yes I play solo, but I can NOT remove "group objective" requirements as a solo player, so we, as solo players lose the benefits.