That's not a point, that's a claim. They say they do, and they did release one piece of software open source. For the one they didn't release, they provided a rationale as to why not. Why do you claim that it's a "meaningless statement"?
Because whether or not they “love open source” has no bearing on rationally deciding whether or not they should release one of their products as open source.
The only function of that statement as far as I can tell is to ingratiate themselves to the reader, i.e. “we’re on your team!” That type of desperate signaling communicates a lack of confidence in their rationalization, which in turn makes it seem disingenuous.
From where I stand, they did contribute to opensource and they are opensourcing their other software, Mapperly. That looks like "bearing" to me.