I'm assuming you're playing in SP and complaining about the drop rates. If that's the case you can't be serious with that, drop rates on realm are far more worse. Either you're doing something wrong or trying to farm some areas that can't drop any sacred uniques. Here is the some explanation regarding the current situation for a single player:
1) Sacred uniques can't drop in every area on the last difficulty like it was prior to the Sigma, although this statement is correct only for a common areas from Act I and Act II. Some high grade uniques requires you to farm high level areas and that's the main change.
2) There is almost no difference between the previous MXL version and the current one in terms of probability for the item to become a unique when it's being spawned. There is no stealth nerfs and set items are still should be raining.
3) You're deceiving yourself if you think that players command as effective in MXL as it is in vanilla. Not sure when exactly it was nerfed, but that was done when Laz was still in charge of the mod.