Most of the other suggested changes probably couldn't have stopped it
Changing from 30 votes down to 5 votes (or 1 vote with a slider) wouldn't have stopped it? My napkin math looks like it would have, but I haven't double checked it yet.
And harder to get consensus is probably a good thing at this point as most people are fearful of investing in projects like this one due to the possibility of funds being frozen. The harder to reach consensus on something like that, the safer those funds become.
And sure there are pros and cons to everything, but I do think we need more changes than just a voting delay and we need to make them sooner rather than later.