I don't know this smells a bit like:
"too many players have large populations and several Vet gens AND 2 MMA gens and therefore can knock out too many adventures in a short period….we must control this/ we must limit this"
At least to my well tuned ears.
Blame Bob fish, Blame Bob.That being said at least you are trying and I welcome change. Its just a shame as I welcome fixing existing problems above delivering new buggy content and delivering the stuff you have said you are working on rather than new stuff that this months Dev Team decide to focus on!