The weapon property 物理ディフレクト means "physical deflection", not destruction.
Also, during the pre-battle dialog with Satori, I noticed that some dialogs were mistimed - when Satori reads the last three minds, the three whose minds are being read should have said their lines before everyone start surrounding Satori, but right now everyone just starts surrounding Satori right after she reads the three minds, and then the lines proceed per normal.
Also, the final ability in Marisa's Astronomy tree should grant +1 resistant to Mystic as well (in addition to Fire/Water/Earth/Elec). This mistake was on the wiki as well (I just corrected it). Similarly, the 2pt and 13pt abilities on Patchouli's first tree are supposed to be "normal danmaku damage +x%", not non-elemental damage.