This couldn't be farther from the truth. Your idea's are generally credited to the company, which in turn is credited to the CEO or some other high up. On collaboration, it's only more collaborative within a given company, and not always even then. Between companies it's outright hostile to collaboration by definition.
Depending on the managers and team leads involved, that kind of thing can also happen when promotions come around. At every place I've worked, a common complaint is that the TL for the project got promoted despite not doing much because they were TL. Of course that's not supposed to happen, but it happens all the time.
The post seems to compare the worst case in academia vs. the best case in industry. You could just as easily flip things around and make industry sound bad.
This is like when Tim Bray mentioned that Amazon is great because he hasn't experienced the same problems that have gotten a lot of press lately. Of course he's treated well! He's Tim Bray!
Matt Welsh is exactly the kind of big name that isn't going to lose credit on something. Of course he gets credit! He's Matt Welsh!