I definitely don't want him to be back in the band. I mean, the kinds of vocals he contributed, and how much he did it, like it or not, and quite a few of them weren't that bad, but they really undermined JLB's role in the band. And even if MP always did what he felt was in the best interests of the band, his influence wasn't always a good thing. And yes, of course, that's not to undermine how much he did for the band, but with MM, I feel like the band is in a very right place right now.
Having said that, musically, yes, I do miss him. There were several reasons why the drums were somewhat underwhelming on ADTOE, though, including the mix and not using MM's technical skills to their full potential. However, if this new album, he IS used to his full potential, and the drums are mixed a little stronger, then I might just as easily say, "No, DT hasn't lost anything important with MP." We'll see.