Oh wow! interesting! THank you!
While playing around with it – I also noticed that I fixed my specific issue simply by adding a carriage return after cut/pasting a URL into the description field of the event in Google Calendar. All the entries that had URL text, but not functional links on my wordpress page SimpleCalendar were events where I had simply cut/pasted links – and there was no carriage return after them. When I add the returns – SimpleCalendar picks up the URL correctly and its not fixed on my WP page. THanks!