When Russians were still flying planes deep over Ukraine, they have something like a 50% fatality rate on ejection, but that might be exacerbated by Ukrainian locals often finding the ejected pilots before any military force does, and people getting bombed have historically not liked the people flying the bombers much. When a pilot on the ground has a lot of bruises and a snapped neck, it's often hard to identify whether that happened during the ejection, during the landing, or after. And even when the cause was clearly violence, the emergency services might not be overly interested in blaming anyone or anything but the seat.