you claim that contracts at this level are executed on the basis of technical merit?
There are debates about risks when large companies move to the cloud - in some industries more than in others. Opposing groups within companies as well as competitors' sales people will be looking for weak spots to make their case.
In isolation, incidents like this don't make a difference. If it looks like a pattern that would be bad for business though.
How has this affected sales over the years?
I believe they won the PC wars years ago and there has never been a good replacement system with enough customer incentive that met the same price point. It is this cow they continue to milk.