Then you misunderstand my point entirely. It's no longer wrong to use "beg the question" in this way. It is now part of everyday vernacular. It is now one of at least two correct ways of using the phrase. Language is weird that way, it's not set in stone, so if the "wrong" thing gets used enough and hits critical mass, it becomes a correct usage.

Look at the Great Vowel Shift, or how creoles, pidgins and patois develop and evolve. Language isn't static, and in the case of "amazing" its current vernacular usage has changed to almost always have a positive connotation.