Try me. I've been working for/in the gaming industry over a decade in one role or another. Programmer, script writer, business development, quality assurance testing, game interface design, marketing and media, and management.
The idea is to balance in-game environmentals that adds atmosphere and realism and improve immersion. HTC are no dummies in this aspect - look how well they implemented the water improvements.
And now you need to qualify why it will suck and how it will kill fps other than stating so.