Thanks for the compliments.
However, in this particular case, I'd beg to differ. Reaper is available at low cost, and is at least as malleable for regular users as any FLOSS project, if not more so. Other proprietary DAWs are also available at low cost these days, and even if they do not offer "learn C++, figure out the build system, understand multithreaded realtime programming, and you can make it do ANYTHING!", they typically offer a huge amount of configurability. Adding control surface support to many (most?) proprietary DAWs is *much* easier for an average user than it is in the case of Ardour.
Basically, what I'm saying is: love FLOSS software because it works for you, and (if applicable) because you love software freedom. If it is truly superior to proprietary software, then by all means say so (loudly!), but let's never forget that most music production software is written by people just as enthusiastic as anyone in this community about creating truly useful and excellent tools. They just chose a different licensing model ....