Especially odd as the band Fucked Up allows taping - I have taped them openly, with a stand, with permission direct from the band before.
B&S is another matter, taping-wise. But still, there is no way a member of a Swiss rock band has the authority to do that unless he is their authorized agent (i.e., he is their lawyer or has power of attorney).
It seems almost like it's a mass e-mail or something that got misdirected. Because clearly the works are not works of Gotthard, whether they are infringing or not.