Around two years ago they changed their license.
I used to be a big champion, and used it at a Healthcare organization I was the CTO of.
After the license change, I moved on to other solutions. Not because of the cost, but because I couldn't justify the risk of building systems on top of a non-open platform. I've seen too many vendor relationships sour over the years.
Also, IIRC, the 5 million threshold isn't just for revenue, it includes funding (or at least it used to, not sure if it still does).