I’d say that if you’re actioning the evacuation checklist, by the time the slides have deployed and people are arriving at the bottom of them, there won’t be a danger from the engines unless you climb into the inlet and stick body parts into the fan.
Our Shutdown Procedure has the beacon going off last and if you do the procedure in a non-rushed manner, it’s going to be 5-10s between fuel control switches and the beacon. Even on a GE90-115, I don’t think there’s a danger of ingesting anyone that walks past the front at that point.