They're probably sounding alarmist to try maximising attention. :/
Which is a bummer. I wish there would be somebody more closely analyzing the industry. There's so much going on and I believe that surfacing more of that to the broader community would be beneficial for all of us and result in stronger companies. I think nobody wants to see GitHub going out of Business. We need health competition (as consumers of their products). That GitLab forced pressure on them to improve the product is awesome. I wish Bloomberg would have put more focus on the cultural/leadership issues because a more diverse/inclusive GitHub, again, is better for all of us.
And it shouldn't be different. If the financials are not well, then the financials are not well. Docker, like github, DOES NOT have their future "locked up" 100%. There are a lot of reasons why both could ultimately fail and burning piles of cash seems pretty darn relevant despite the echo chamber that is Silicon Valley.
For me, it's especially not surprising because GitHub needed to heavily invest into GitHub Enterprise, start doing Sales, etc. to keep growing at the rate they wanted and they probably made a lot of mistakes when they started Sales. It's hard, and especially if you put Sales into a very developer-driven culture (=> takes you longer to figure it out => more mistakes => costs you more money). That all being said, some things they did are certainly a sign of being a bit too confident (office, etc.).
But, that's all not their biggest threat. You can get the burn easily under control and reduce cost especially if they are primarily in Marketing/Sales. The bigger issue is a decrease in product quality, a (perceived) slower pace for innovating/improving than their competitors (GitLab) and all the internal culture/team struggles. Having changes in your key positions, 2 out of 4 founders leaving, CEO change, etc. - that's all far more dangerous. A good leadership team can control the burn and reduce it if necessary. A good leadership team sets the right culture.
git remote add neworigin ...