Not wishing to put words into Michelle's mouth, but I think the reason Innovation Birmingham exists is to try and create jobs and investment within Birmingham. I think this is a necessary requirement as it receives significant European funding (and I think is owned by the Council).
This might explain why they are not simply offering flexible workspace to anyone who is willing to pay. A freelancer doing 'work for hire' is probably not likely to be the next job creator.
Excited to hear more about Sandpit from Simon.