A few days after that, some other newsworthy event will happen, everyone will forget about this, and we won't hear another word about it until the first lawsuit over this Agreement is announced.
I think the only thing that might be missing is an indemnification clause -- although it may very well be in there (I freely admit to not reading the entire Agreement, just this section 7). That way, when the venue you've booked for your event -- or one of the participants or attendees -- decides to sue Eventbrite, they can point out how YOU promised them you had everything taken care of and so it is YOU, obviously, who is entirely to blame. For everything. I expect that elsewhere in this Agreement, however, you have likely given up any right to sue and agreed to have someone of their choosing handle any "disputes" which may arise.
IF I, by chance, ever again desire to attend an event where Eventbrite is the vendor handling ticketing, I will certainly make sure that I read, very carefully, every word of any agreements they try to get me to click through during the ordering/checkout process. Considering everything I just read here, I cannot imagine the things that they will expect an attendee of an event to agree to.