This seems notable for the NHL these days. Also, across all 8 goals there were only 8 assists total awarded.
Donato unassisted, 1st period:
Heinen unassisted, 3rd period:
Tanev unassisted, 3rd period:
Donato unassisted, 1st period:
Heinen unassisted, 3rd period:
Tanev unassisted, 3rd period: