yes
Ritual and 4200 MF give almost twice as much uniques than 300 MF in this experiment.
Taking 5 mins to pop the Ritual before a 2 hours+ full game clear does not seem overrated to me at all for an expected result of about 2x the uniques amount with ritual than 300mf.
845 elites per game on average. Even if you kill 30 elites in those 5 mins while I do my ritual, by the numbers in the vid I will have more uniques at the end of the day.
If we look at sets + uniques it is less impressive of a gap, but take a look at uniques and it is clear there is something going on here.
And we are not counting the beneficial effect on Sunders either here.