Second part first, IMO yes MCW is trying to hurt AIW. Not sure why, but AIW running a show that day was no surprise. It was listed in the same thread. So, it's bad form for them to to that. They run shows every two weeks. They could do this promotion on their next show.
First part, IMO, no offering a free ticket promotion doesn't necessarily hurt the business. CAPW's only saying no comps for girlfriends, workers, etc. on every show. It's not really the same as what MCW is doing.