I say this is more of a fun gamemode/ way for players to relax in comparison to Gauntlet, as one of the major arguments with Gauntlet was the heavy imbalance between factions (with Faie and Reva specifically being the top ones due to their BBSs and cardpools respectively).
With this mode, players start out with decks and slowly level up to expand their deck. Also, I believe that this is an unlimited gamemode, where you buy a ticket to start a run with a different general while retaining the other generals/drafts and their levels (until the event/gamemode expires). These facts alone can make it more beneficial and a more enticing gamemode for players (in my opinion) in comparison to gauntlet. However, I can also see your point with player numbers (which was one of the reasons why Gauntlet initially was only open on the weekends and Wednesday).
At any rate, can’t wait for tomorrow!

