The 34-year-old won the Camanachd Cup with Kyles in 2012.
The issue was discussed at the Camanachd Association's annual meeting in Fort William.
MacDonald takes over at the Mowi Premiership side from Kenny MacLeod who stepped down at the end of the season.
Mabon was an integral part of the Kingussie side which won a treble this year.
Ex-GP Dr Wilson Banks pointed to the drastic reduction in head trauma incidents after the equipment was made mandatory in hurling.
James Hutchison and Fraser Munro are stepping back from first team shinty.