they already qualified, so losing isn't as punishing, which is why they seem very positive after losing.
they tried to antistrat sen HARD on sunset. first it was loud's map pick. notice the bomb plant next to halls. not a single person on loud on-site for post-plant, almost ever on A. sen's retake floods site with layered flashes and mollies for every corner, so loud tried to save as much util (mollies) as possible and deny the post plant. it worked for a few rounds but sentinels just started smoking halls off and tapping the bomb until loud burned their util. and the phoenix comp just doesn't work when his ult really gets as much info as a sova drone if sen always maximizes retakes and plays offsite.