DS Geo TB P4 Wat special mission after Wat changes

The same issue here.
Spent over an hour in wave 4 which is SO RIDICULOUSLY STUPID LONG for a mobile game, and lost.
Can't remember the last time me losing this mission.
Guys at CG, if you wanted reduced damage vs Galactic Legends then PLEASE make an additional modifier to the affected skills like you just did with the other ones (raid bosses AND Galactic Legends).
PLEASE don't ruin the other game experience with such a drastic and obviously not well thought out changes.