With Chinese stuff this kind of inference is quite standard, but with Zeiss and Meopta I would want to have better (i.e. some actual) evidence for stating it in bold face as a fact. Zeiss/Leica use Meopta to produce high-end scopes, not lower-tier products; Meopta isn't that sort of company. For that one looks to the East... as Meopta themselves now do.
Glad you're getting your 15x choice sorted out.
Counterfeit products for firearms-related optics back then were really easy to spot. As I didn't buy or sell Meopta or Minox binoculars or scopes, it was more of a curiosity to me than a serious examination. Weight, balance, feel, and limited optical assessment inside a building suggested to me at the time there very similar if not the same. I wasn't a critical assessment of optics and I was certainly no expert so I could have been duped or spot on.
However, my thoughts on the subject were confirmed by a Zeiss specialist dealer I was friendly with that had no reason to lie or brag about this subject.
Chinese (and other Asian) knockoffs back then were almost comical in comparison.
Whether anyone believes Meopta did or did not make very similar binoculars to what they built for Zeiss (in my case) back then is not a significant issue for me. As noted here, Meopta is capable of building spotting scopes to Leica and Zeiss quality in Europe so is it really hard to believe they could do the same with binoculars in the United States?
That was then, this is now.
Zeiss is a different company today than it was then, for better or worse. Swarovski seems to be going through some family turmoil now that may or may not affect their sport optics.
From looking at reviews here and on hunting forums, modern Meopta options certainly appear to offer a lot of value in general purpose sports optics. The 'big three' certainly have an advantage for more specialized optics at the moment from what I can see but, it may not be that way in the future as economics change for the big European conglomerates in the sports optics world.