They all have support. True. However at my gig at my previous Job I have gone many opslead shifts without incidents. In fact most incidents were because someone

They all have support. True. However at my gig at my previous Job I have gone many opslead shifts without incidents. In fact most incidents were because someone added something new. During code freeze, we coasted multiple weeks without incidents. SREs job is exactly this. Prevent future incidents. Prevention is much cheaper than cures (mostly)