
I’m not aware of anyone who says this.
Rather, it is true that both the center-of-church and side-chapel location of tabernacles are fine. It is also true that there are plenty of closetesque “chapels” out there that are not located in a prominent place, are not decorated, and seem to be hidden due to ideological or faulty theological reasons (ever read stuff written by some disparaging adoration? usually also such authors vehemently disparage central tabernacles), and that
is a problem. It seems to be a problem not confined to any one part of the United States. Sure, the bishop doesn’t speak for any other diocese, but what I have said is pretty prevalent in many places.
For my part I don’t especially care if the tabernacle is in a chapel, but it should be blindingly obvious where it is, easy to find, and readily accessible. It shouldn’t be some tiny broomcloset with one prie-dieu and no art and (of course) ugly carpet in a wealthy suburban church that seats 1000 people; that seems pretty ideological and yes, I can think of a few places with this situation.