Well, Bresser is a Jinghua (JOC) controlled brand, as is ES. Thus I would expect these are based on products that JOC made for Meade. The first generation of ETX OTAs were made in the U.S., then Mexico. With Meade buying much of its line from Synta, they may have sold the rights to the old ETX tech to JOC, which lost out in the competition to buy Meade to Sunny. Or prehaps JOC never transferred the rights to Meade.
There was some sort of understanding with JOC and pre-Sunny Meade involving the use of Autostar tech for ES's version of the LXD75. Also iOptron mounts used components found in the DS2000 mounts. The last iOptron catalog I saw featured a lot of JOC products. so I assume there is some association between them. The MCX's hand control lokks a lot like an iOptron unit.
No reason the optics can be as good as the original ETX's, but the proof is in the pudding. Wish they'd gotten rid of the visual back assembly, though.