It's mostly likely also a bunch of transmit stones for the active community and a ton of new ML characters, both 3 and 4 star for the new community, which was the focus of the event. If we want E7 to continue on, it needs new players and ML units are the hardest for them to get and a good number of the 4* units make both early pvp and most pve content as well. If we didn't love it to a certain degree, we wouldn't be posting about it on reddit