It’s more that I don’t think IBM is a good fit, or at least modern IBM, which strikes me as being a consulting driven company.
Red Hat have funded a lot of work on the desktop technologies that we use (along with a lot of server stuff), e.g. Gnome, systemd (don’t start…), PulseAudio (ditto), etc. I just don’t see IBM caring about that stuff. RHEL has always been trendsetting even though it’s so conservative, if they announce that so-and-so software is going to be in the next RHEL release, we all take notice. I worry that with IBM, RHEL will just become another Oracle Linux.
I think I’d actually have been happier had Microsoft bought them! You have to wonder if they or someone else is now going to make a play for Canonical, as they’re the last big independent Linux company out there.
As an aside, while I don’t use Windows anymore, I did work as a C# developer for a long time. Microsoft are a very developer focused company, and I think that they will be good stewards for GitHub. Whatever you think of their methods in the past, they’ve always struck me as a company that believes in empowering people through technology, and in that regard there is a similarity to the open source community. Sadly there seem to be few organisations with that attitude any more.