Take the video player MPV, it can be controlled by sending commands into a named pipe, which is good, so you can control it from a Python script - but now instead of having a system-wide standard like COM where you have PyWIN32 which works with any COM object to any COM program and you call methods from the MPV documentation with Python numbers and strings, now you have to have a Python-to-MPV-JSON-Schema serializer in your code, and if you want to use C# you need a C#-to-MPV-JSON-Schema-serializer in your code. All you're really doing is triggering some code inside MPV - calling some library functions - but instead of a convenient system-wide standard way to do it, there's a different inconvenient non-standard way of doing it from every language to every program. Strictly worse.