A proprietary software vendor trots out the hoary old line that F/OSS is, per se, costlier in TCO terms.
.. without, I note, any data or influencing factors to back that claim up - if you make a claim about something you can measure you should better be ready with the metrics to determine that independently or risk being exposed as being a g.., no, wait ..
As far as I can tell from the story, their switch to Git based tech must have dropped TCO substantially.
Well done - also for the article. I prefer reality rather than regurgitating marketing brochures.