WURFL did a very similar thing as well and it felt pretty disingenuous. Consequently we ended up switching to 51Degrees.
I personally don't like the OSS bait and switch tactic either. I prefer when companies offer other products, extensions, and/or services on top of the OSS core. If the company is still major contributors they still can shape the OSS core more suited to their proprietary offerings.
It just happens that I am from the generation that used to pay for software.
Also I kind of lost my FOSS enthusiasm, after learning the hard way if software is the product one sells, there is hardly any money to pay the bills, if the product isn't amendable to consulting and support.
We are far from the supermarket taking pull requests.
I also don't see how the "freetards" killed RoboVM, but you seem to agree with me that RoboVM is dead.