Maybe because people are still naming their identifiers "x" and such, and "new Foo()" could be some arbitrary expression?

Or maybe just because C# is a TIMTOWTDI language?

C# looks indeed quite baroque to me. But as I'm not doing any C# I don't know whether this is a good or a bad thing in practice.

OTOHS I guess less complexity in a language is generally to be preferred compared to having more flexibility doing the same thing.