That may be true in some systems. But the salient question is whether the recount readjudicated or not. It doesn't sound like the recount did anything more than recount the ballots post-adjudication. So the recount wasn't an audit of the process, just an audit of the result of the potentially fraudulent adjudication process.
Second, and I don't know the answer, but is it possible that the decrements were due to pre-adjudication and post-adjudication differences? The tabulators may have reported original results based on machine scans, then flagged the ballots that needed to be adjudicated (the flagging could be configured to be excessive). Then after adjudication of each of those, potentially flipping the votes, the new totals were reported showing a decrement.
Well we might hope that, but it isn't the case. Even in the video the expert said it was electronically adjudicated and that the ballot "image" was destroyed, i.e. the digital copy. Again though, the paper ballot showing the intent of the voter is preserved and that was what was human counted in the RLA. So even the adjudication would have been audited by the RLA since only the paper ballot that was cast is considered in the evaluation.
Second, and I don't know the answer, but is it possible that the decrements were due to pre-adjudication and post-adjudication differences? The tabulators may have reported original results based on machine scans, then flagged the ballots that needed to be adjudicated (the flagging could be configured to be excessive). Then after adjudication of each of those, potentially flipping the votes, the new totals were reported showing a decrement.
Maybe, but the human count did not show this to be a source of potential error. To a fair individual, it is hard to get around the human counting of 100% of the paper ballots. I think even the Trump team acknowledged this when they expected the human count to not be substantially different than that of the machines.
The only thing that I can see that might have happened in Georgia is old fashioned ballot box stuffing. Thus, invalid votes counted as valid votes. I was hopeful regarding the signature match audit ordered for Cobb County but was ultimately disappointed with the result. Thus, you would have to get on the other side of the paper ballot introduced into the system to find out how they did it. They either stuffed the ballot box or they won outright, at least in Georgia. I have considered the latter of those options and won't discount it, but then that gets us to the other overt actions taken in the runup to the election to steal it, i.e. the media censorship, the changing of election rules, the flooding of mail in ballots across the fruited plain, etc.