My hypothesis:
Splane (the self-proclaimed genius bad-ass of the GB) read through some of the critiques of the evolution books/brochures (finally). His fix: tell the world how we hate quoting out of context, without telling them that we'll be more careful in the future because we fucked up so many times in the past.
Just like many critical subjects, the GB will layoff the evolution debate from now on. No need to beat a dead horse. None of their followers, nor the people that they may convert in the future give two fucking shits whether evolution is true or false.