If the person had an option of Chairman's Lounge, that could well be nice to have - I would suspect that it is the Chairman's Lounge membership that is provding the rose petal service than the Platinum 1 status
even so, to me, there would have to be a huge number of disruptions to make it worth sacrificing so many valuable miles to get P1 status vs crediting elsewhere - if there were that number of disruptions, I would not be flying on Qantas anyway