Do you mean that the set doesn't match the exterior? Because I think I've seen a drawing by Andrew Probert that showed the TMP bridge in relation to the exterior layout.
Yup.
I guess the "quite deliberately" bit is exaggeration - to the contrary, the contours of the superstructure are the same as those of the set. But the bridge set as built chooses not to put the skipper in the prominent cylinder turret with the portholes (where it could fit if needed), whereas the round walls of the TAS bridge suggest this exact (and prominent) placement.
Had the Klingon bridge set been retained in storage and used in a later movie in its original role, only with the upper floor now built as suggested... It would have been glorious. But it does make for a damned good machinery space, including a passable photon torpedo autoloader (with "auto" disabled for training purposes).
Timo Saloniemi