Auric Goldfinger said:
Once is happenstance. Twice is coincidence. The third time it’s enemy action.
This is why Open Source misses the point of Free Software. In other words, Free as in Free Market — a competitive landscape offering real choice of systems and suppliers, not locked into a single vendor’s proprietary software stack.
If somebody finds a third example, add a link in the comments, so readers can draw their own conclusions from the evidence.