Not true.
When you use EAD to dive air tables when using nitrox you aren't given credit for the faster offgassing during ascent and/or stops but you do, in fact, offgas faster...which is why we can use EAN mixes and even pure O2 to accelerate decompression on dives that require staged decompression. For a detailed illustration take a look at any accelerated decompression table or play with some decompression software.
At the risk of being overly blunt, I sure wish the people teaching this stuff would teach the truth about it.
Not sure you are Correct on that Mike. The tissue off gases at a set rate, depending on the type of tissue. Using 100% oxygen does not accelerate the decompression, it prevents re-loading of nitrogen while still at 15 feet (or whatever depth you are at) and that is what reduces decompression time. How would oxygen cause the tissue to release it's stored gas any faster?
Best Regards