It's a cheap shot and I'm glad that nothing of the sort ever happened in the Purple camp with its convoluted family tree. Whether in 1975 or in 1993, Blackmore neither in public nor in court ever questioned the legitimacy of the other guys continuing (though he is rumored to have lawyers take a look at it!). DP today features one solitary original member - the drummer, i.e. Ian Paice. Gillan and Glover are from a second line-up (which albeit eclipsed the first one in popularity).
I stand by what I said: Real fans know whether a line-up is legitimate or not, the rest of the audience doesn't give a damn as long as the music is decently presented and they recognize the old hits.