The starting order rule is way older than ogier. But it was indeed made into 2 days of cleaning in 2015 to stop ogier, and then back into one day in...
It seems like that's an idea by someone who has absolutely no idea what rally is. Someone who doesn't know there's a codriver constantly talking and...
Unless there are steep uphill or downhill section that just can't be done with slicks, i don't see any problem. They will just need to take it slow....