Crossover for Work Customer Support Manager interview questions

Someone emailed me and asked my availability for an interview, I replied back and the person was exactly at the agreed time on Skype, previously I had gone through some testings

they call it Hiring tournament where they gather candidates in a virtual webconfrence, started with a presentation on the company and video from the CEO, followed by a breif clarification from the VP on the role. then to the interview process first we started with some basic screening questions followed, followed by an English recording on your top 3 skills that would make you a good fit for the role. and then to the written evaluation a long process that took nearly 5 to 6 hours, then you'll wait for the results which should be within a month. i made it to what they called the Market place after successfully passing the written evaluation only to find out that i'm now a part of the poll of candidates they have awaiting hiring managers interview when a position is open!!! i was then contacted by an advocate that suggested that i apply to ther positions as well since they have no opening at the moment for Support managers and they've more than 120 successful candidates in the Marketplace !!! WHY ARE YOU INTERVIEWING THEN?? and should i waste another day in this process to be again in the market place!!! it has been now 2.5 months since I've been to the market place