It reflects how people voted yes, but does not abide the rules of the process. Passing rule changes prior to 10am convention start time AND miscalling clear voice votes, disqualifying delegates with proper cause or chance to appeal is all wrong. Leaving the floor when motions are open is also wrong.
So, again, the rules of the convention allow you to pass rule changes prior to 10 am, as long as 40% of the delegates are seated. The convention is called to order at 9 am. See VII. a. The quorum is 40%. See VIII. g.
I'm really unconvinced about the voice vote issue. Obviously a video from the floor will be totally useless in determining voice vote outcomes. Are Sanders supporters arguing that if there were a division they would have won?
The rules don't allow for any "chance to appeal." Delegate credentials are handled by the Credentials Committee, not the floor. See VII. c. I get that people wish that they had a chance to appeal but that doesn't actually make it part of the rules.
I would be interested in seeing a specific example of somebody who was disqualified as a delegate, the reason they were given for being disqualified, and an explanation of why that reason isn't valid. So far I see one person saying they were disqualified without giving a reason and a few people who were disqualified for obvious reasons. The committee report says pretty clearly why it claims people were disqualified -- either they weren't registered Democrats or they didn't respond to emails. Those both seem like reasonable reasons to disqualify somebody to me. So what's the problem?
As noted, the fact that you stood up and said you made a motion doesn't entitle you to anything. Before you can make a motion, the chair must recognize you. Did that happen?