1- some CTRs are very big. Although this note maybe means the MSA is only valid in CATARATAS CTR, and not beyond it (note the borders).
2- 3000 ft at 6,5 from the ILSDME is enough for G/S check. We don't check G/S at the MM or equivalent, but if we want to do it, we have the info on the plate.
3- the FAF is depicted a a maltesse cross, which in this case is the fix at 6,5 miles. the 4.0 miles fix is just a stepdown for the loc only approach. It means that you can't go below 2200 ft before that point.
4- I wish I could fly that approach in VMC!