I would be most interested in your source for all this?

It flys in the face of what every stonemason, plaster mason, and brick mason has been doing in USA, Canada and the UK for the past 200 years. I work with restoration masons all the time.

How can an inert substance like 'glass' speed up the 'cure' -absorbing Carbon Dioxide - of lime?

What possible difference can less than 1% magnesium oxide cause? If it is higher - it can form into tiny little chunks - but not a problem with air classified lime - and also pockets of high concentration could cause different 'freeze thaw' - only a problem if your fresco is going outside in freezing wet weather.

I would be interested in seeing a chemical data sheet on your lime before I ordered any - is this available?