If it's going to make them money
That's just it. I see very little enthusiasm for this event. I've seen nothing to suggest the tickets are selling in any great number. Most of the small number of posts on the DSTL forum over the last week have been complaints, with both Shamasters and Media 10 saying nothing to address concerns. You'll have noticed that overnight, Joiner's had another mental breakdown on the DSTL forum.
Having read the comments over on Gallifrey Base about Lords of Time, along with those about Joiner's general competence and attitude towards customer service, you're right to have reservations about the event happening.