It's because you aren't looking at 20 year old EULA's
>3.4 Benchmark Testing. The Software may contain the Microsoft .NET Framework. You may not disclose the results of any benchmark test of the .NET Framework component of the Software to any third party without Microsoft’s prior written approval.
This person is not likely familiar with the history of the .net framework and .net core because they decided a long time ago they were never going to use it.
It's because you aren't looking at 20 year old EULA's
>3.4 Benchmark Testing. The Software may contain the Microsoft .NET Framework. You may not disclose the results of any benchmark test of the .NET Framework component of the Software to any third party without Microsoft’s prior written approval.
This person is not likely familiar with the history of the .net framework and .net core because they decided a long time ago they were never going to use it.