Yes, I see @r0nd0n also agrees with this.
There is a logic to this too.
Maybe dropping from 30 to 3 in one step is deeply radical!
I am personally not wedded to a number so long as it has a logic behind it given that there are 20 top witness slots.
Doing it the other way round, by increasing the top witnesses won't work as the number of current votes is way too high compared with active witness nodes.