Kille and St Mirren couldn't fulfill their scheduled fixtures down to their severe breach of the Covid protocols. That was what was investigated and punished.
Utd and Celtic are fulfilling their fixtures (although I thought Utd were being investigated).
Calling off games is the key difference.
Not taking action is unfair punishment on ourselves and Accies as we'd have to fit the games into the tight schedule and play them when they are back to full strength. Not only is that rewarding them for breaching the protocols, it would encourage other teams to call of games when it suited them, knowing there would be no consequence.
This is a unique season where unique rules need to be applied. They need to suck it up and move on - and be grateful they didn't have to pay the fine.