Could be, but I saw three of them hit 2 warehouses quite nicely
Protecting large areas from GPS guided munitions requires big equipment, which is then very vulnerable to being spotted / detected and HARM’ed or area saturation attack.
So... Russia will successfully defend some original targets and obviously talk that up, and others will get hit. GLSDB’s are not terribly expensive and adding them in qty. makes defense significantly tougher, esp. as more area needs defending. “Stretch the defense”.