That's what I thought too, but I guess a few 92-93 cars came with a vx manifold for some reason, and the egr valve was a dummy, basically just there to block the vacuum side. I've seen one or two through the years and always just figured there was some strange swap choices made.
My personal car is only one example of loop holes I've used with the smog ref, my wife's 90 lx got a mpfi swap with obd1 stuff that needed paperwork done, the injectors and tps were discontinued so I was allowed to swap the entire injection system.
My dad's 83 f350 Had thermal vacuum valves that couldn't be sourced and 4 different reman carbs with warped or cracked bodies, so I was allowed to run a crudrajet and rig a vacuum rectifier off a Toyota camry to control the egr and bring the emissions into compliance.
Most recently an 80 suburban got a 5.3 swap from a wrecked 04 Silverado, the ref even let us use the dual cat y pipe off a later model truck because the y pipe off the 04 had clearance issues and I had the other laying around in near new condition.
I've even been able to push through some boosted civics using bits and pieces of the few old-school piggy backed type carb legal turbo kits from the late 90s i find floating around and building the rest of it with newer more up to date parts.
One time I actually had to find a b18b1 auto to put into a civic because whoever had owned the shell before had done the paperwork correctly and it would have taken more paperwork and inspections to put a z6 or b7 in it like was originally planned for it.