I know for a fact that when I had a busy physiotherapy clinic and also trying to juggle family life that I wanted something during work hours that wouldn't impact too much on my time off. As business owners or someone with a side hustle, blocking a bit of time off to come and then returning to their business shouldn't be a huge burden.
For people with full time employment and can only make it outside of work hours, there are plenty of other events around. This event is mainly for people already in business, or making a transition to business.
Also weekends, early mornings and evenings are very high traffic times in my household. I have found that going to the closest cafe at a time that works most with my schedule ensures that the events continue running without burnout from my side.