I have no good theory about why that is except that maybe more and more business people are under the illusion that "software is being increasingly commoditized" which is of course not true.
> ..."software is being increasingly commoditized"...
I only wish this were true; then value propositions for software could climb a value ladder. The challenge is business' are not standardized beyond some very basic functions, and new standardization comes at a brutally high cost (time and expense). So I see where office productivity has settled on Microsoft Office (though even there, I see huge fragmentation between versions, how people don't use styles, how most people have no idea of pivot tables in Excel, etc.), and we've pretty much just crawled along at a snails pace since then.
If anything, judging by how little I can transplant of business processes that emerge around software from one company to another, and how much those processes mutate over time, I would assert software standardization is getting worse, because getting businesses to standardize even when moving to the cloud has been a bigger challenge than I anticipated.