it sounds like the person hasn't even used Linux but just did their research and found out their software doesn't work on Linux and didn't. Which is what everyone should be doing is evaluating if Linux will even work for them before committing to it.

If the original comment stood alone without rebuttal someone might think that Professional music recording in general isn't possible on Linux when it clearly is possible if you are willing to adapt to the Software and Hardware that is available on Linux.