What non-nefarious reasons would GitHub have for making these decisions? GitHub is owned by Microsoft now- they can afford to do this at a loss / zero sum amou

What non-nefarious reasons would GitHub have for making these decisions? GitHub is owned by Microsoft now- they can afford to do this at a loss / zero sum amount because Microsoft thinks it's a good idea. As long as Microsoft is being altruistic here, we should be fine. I think.