I agree, but for some job it was simply necessary to grants these "ready to" buff.
MCH is an example where you simply had too much gauge at your 2 minutes and was forced to delay Barrel Stabilizer or overcap.

It wasn't a "possible failure" it was a "forced failure". On the other hand, GNB works perfectly fine with the current Bloodfest. I doubt VPR would work if it gave the job 50 gauge.
RPR, I don't think it was necessary as the implied rotation already required you to spend your gauge before Plentiful Harvest.

In short it depends from job to job.