sjaehn
Plugin DSP and UI binaries do not need to be split
Another correction.
Having the plugin dsp stuff in a binary and the UI in another binary is not a requirement. Developers are free to place everything inside a single binary, even multiple plugins and multiple UIs.
You can also split the binaries inside an LV2 bundle so each plugin in the bundle gets a different one.
In resume, there is no restrictions for this whatsoever, and implying there is, is misleading.
You are right, of course. There is no need to have two ore even more binaries. And I know that you don't do splitting ;-). But you CAN do it. I used LittleFly by brummer10 as an example it the video 01. And he's one of the programmers who prefer to split DSP and GUI code into two binaries.
The splitting makes sense typically, but not always. I most definitely do it as much as possible. In some stuff like JUCE it is not possible by design, sadly.