I worry about the long-term safety of a CRT that has had this procedure done.
The entire purpose of the bonded faceplate is for implosion protection. Removing the resin layer eliminates this safety feature, even if the glass faceplate is reinstalled over the tube. Before the bonded faceplates were introduced, a separate safety glass panel was used in front of the CRT. The removed and reinstalled faceplate is NOT made from safety glass, and, without the resin bonding layer, offers little more than added shrapnel in the event of a screen implosion.
Some vintage TV collectors have had the tube implode while attempting this "cataract surgery", as well.