Yeah I mean, of course technically that's not how it's supposed to be done, but if they initially added the code and the licence (the latter by mistake), then I can see how the internal narrative is "here's my code (that Roman has contributed to) and I accidentally added the licence to it - oops, let me remove that before we accidentally make it public".

Of course at that point they should have realised that they weren't the only author of the code any more and that Roman understandably would have the wrong idea. But I see how it's an easy mistake to make, and it would probably also have easily been resolved had Roman reached out about it, rather than just instantly making it public and implying nefarious behaviour ("quietly made a change...discovered by me").