Board Thread:Event Official Threads/@comment-26091666-20160430054725/@comment-26825520-20160509020249

How so? An STF fleet can get AS/AS+ (depending on the formation) on the boss node, if that's what you mean by "costign dearly" on the boss node, added with AACI.

There's probably also as much people using CTF that can't pass it. It's RNG.