> It does require a different thought process and like Michael
> said it is practically "visual programming" which most people
> do not like.

Another possibility is that since a system like that is so similar to programming already that it could be good to actually emphasize that aspect even more so...

Some things are probably just easier and more compact overall when they are directly written as code instead of every single thing having to be a visual node with connector lines.

Things like loops, conditional statements, stuff like that can add up to a big soup of nodes and connectors while in text form them are just one line statements.

- Michael