Undo a merge for Peter John Wyatt

Hi, I was reviewing data conflicts and I think these profiles have been merged in error.
https://www.geni.com/merge/resolve/6000000010174722284

Peter James Wyatt died recently in Southland, New Zealand, and none of the children shown in his obituary have the surnames Dick or Peters, as shown in Peter John Wyatt's profile. In addition the birthdates are 10 years apart and in different months.
https://honourthem.com/obituaries/wyatt-kevin-james/
Regards
Sheryl