Looking at Plexon's GUI this doesn't seem to be something done in a hackathon and requires active participation of neuroscientists as domain experts and as end users to develop. And they usually don't have time (or willingness) for that.
Regarding fMRI, I take your posting as something to talk about with the neuro people.
My main takeaway from your posting is that better GUIs and visualizations are needed. That's what I found (workflow, UI) before and your posting is another affirmative data point here. Thanks for the links.
Any hints how to talk to biologists / neuroscientists? I still need to know more about their incentives (what they have to accomplish or help them doing so) and constraints (what they can't do or is unimportant) and culture. As usual, publications and funding, but what is seen as high status and what is frowned upon?