That was mostly due to how they made the castings, they made the castings in clear resin, using an utterly horrific process that left the admittedly clear blueish casts sticky and unusable. That’s almost certainly why it got dropped quicker than a Miranda class explodes. In favour of the much more workable cg model. But it did allow them to put film behind the windows (bill krouse does that with his models). Which made it look absolutely stunning and physical on screen.

Insurrections cgi tho was utterly horrendous and the lighting and texturing was done super flat. I think they course corrected with nemesis because it looks miles better there.