Not sure what your point is (and not even my discussion), but if Messi wanted to play for a symbolical fee we would have no problem registering him.
No we wouldn't lol, that reinvest 4:1 stuff is bullshit until we get under FFP too, that's why the new signings haven't been registered, you think that 1/4 of messi's contract isn't enough to register the new signings who all took big pay cuts? Laporta was clear 'we need to get to 70% to have no more issues with registration'
Without Messi's contract we are still at 95%. So we need to cut Griezmann, Demeble, Umtiti, Pjanic, Lenglet etc to get to that 70%. Resigning Messi was not possible. And yes, it is normal the best player in the world asks for decent wages (a 50% reduced one).