Flying towards a flight-line is innocuous.

The problem is performing high-energy manoeuvres towards the flight-line ... 'cos these manoeuvres naturally entail the risk of departure from controlled flight.

So, you don't dive towards the flight-line, then pull into a loop. You don't fly towards the crowd, then roll into a steep turn or start a flick roll.

Simply flying towards a crowd is pretty much unavoidable.