Too little, too late?

Its fine. You are not suppose to delve 24/7.
I rather do 1 rewarding delve per 3 maps than 3 delves with less drops/lootboxes/fossils per 1 map.
I just dont understand the whine. Suck it up and do the maps for your sulfite. No instant gratification for you this time!

Only solution i can see would be another delve. "challenge delve" with no sulfite cost and no rewards. just the challenge of delving.
Then you can delve all you want without mapping.