Previously with a full party prepared for raid, you assembled in the Hinterlands and the leader selected a menu from Lightkix Eyesfixed.
With the 3.3 changes, the gobbie interface takes you directly the Raid Finder menu, which has ilevel requirements built into it.

Because many raiders are using sets of melded crafted accessories, or other lower ilevel alternatives, full premade groups are effectively getting locked out of instances.

I was under the impression that Raid Finder was going to be an addition to the game, not a substitution for the interface that already existed.

It is entirely unnecessary to gate player ilevel in the CURRENT raid tier for premades.