Btw, there may be a reason why we're not seeing teams that fit the week's focus.
Today I stumbled on a bug and was able to reproduce it.
If I am in PVP and do anything to edit the team when at the start of the match, - IT changes my Defense team to match that team I just updated.
I found my Glacier team was no longer my defender team but my #1 powerhouse team because it started to win as a defender...which was odd.
I wonder how many others alter or tweak their teams at the start of a PVP round and don't even realize that they've changed their defender team (Thanks to @Lyya for the headsup on this bug too)