Shadow profiles? Huh?

I simply put tasks in Asana and want to view it on a timeline like a Gantt chart. I can't do that unless I pay 5x10.99/month. There is a huge gap between $0 and $70/month.

What revenue are they cannibalizing if I'm not going to go from $0/month to $70/month when I'm only one person? They just lose me as a customer going forward.