Even if that were true (which I don't believe was the case), that actually gets to my original point: that TNG suffered less from this issue due to its greater use of physical models, whereas the bulk of later-season DS9 exterior shots were CG. TNG simply had a greater proportion of practical effects - shot on film - than CGI effects than DS9, and DS9 more than Voyager. For example, the only appearance of a CGI model for the Enterprise D (edit: on TV) was in DS9 - the model never appeared in TNG, and every exterior shot of the Enterprise in that series was a physical model. Meanwhile, in DS9, by the later seasons most of the Defiant's exterior shots were CGI (and those that weren't were mostly stock footage from prior seasons).

The TNG remaster made significant use of new CGI, or substantially updated CGI, where the base assets had to be updated. They were often not starting from scratch, but in no sense just re-rendering. Moreover, many assets were created brand new from scratch because the base assets were considered unacceptable (wide shots of planets, for example, are the most common, as well as some whole characters like the crystalline entity).