Meyer's nautical sensibilities brought about the 'battleships on the ocean' effect but I think the 2D plane presentation that's normally always in Trek is a combination of how to practically present the audience with something we can quickly process and understand spatially and also because I would imagine that to truly have 3D presentation would be costly and time consuming from a visual effects point (maybe easier now with CGI) and probably would disorient people if it were truly depicted, because it would be a visual cluster****.
'If the Apocalypse starts, beep me!' - Buffy Summers
'The sky's the limit.....' Jean-Luc Picard, 'All Good Things'
courtesy of Saquist