I will look into the javascript implementation. Remember this was working fine until I updated your plugin.
I can confirm:
1) I turned off all plugins except The Events Calendar, The Events Calendar Pro, WooCommerce Tickets, and WooCommerce.
2) I changed themes to 2015 and was still not able to add tickets to the cart from an event
3) When I turned off The Events Calendar the cart worked fine. Plus, no ticket products work fine.