On many .NET shops we do refer to it that way, because C#, F#, VB and C++/CLI are part of the package, so while nowadays C# tends to carry the crown, plenty of business opportunities still exist with the other ones.
Also as reminder how it look on the launch event, https://news.microsoft.com/2001/10/22/massive-industry-and-d...
> More than 20 programming tools vendors offer some 26 programming languages — including C++, Perl, Python, Java, COBOL, RPG and Haskell — on .NET.
