I am a lighting engineer...
LED lamps are used all the time in aviation, where they are certified for high humidity, immersion, salt spray, and temperature extremes. It is commonplace to seal them and use conductive heat sinks to dissipate the internal heat. Thermal failure problems are well understood and well mitigated.
CFL fixtures can also be easily protected. It is all about using the right lamp type for the right job, no one is claiming that a CFL is the best for commercial street lighting, for example, where sodium lamps offer superior benefits, and especially not in an oven!
With regards to color vs energy, CFLs and white LEDs use a phoshpor to reradiate a broader color spectrum. The efficacy losses due to light outside of your visual spectrum are a very small fraction of the total output. While your comments with regard to color quality vs aesthetics are important, you assumptions about color vs efficacy are more or less false.
And one more aside, I'm even using standard spiral CFLs in my outdoor porch and carport now exposed to rain and weather, with no problems. They've lasted over 2 years now.