Comment by jacquesm
Air + fuel explodes just fine. You really don't want to crash an airliner. At landing speed the number of people dead will still be > 0 and the remainder has a good chance of being injured seriously.
For instance:
https://en.wikipedia.org/wiki/Turkish_Airlines_Flight_1951
This happened at landing speed (the airport is only a few hundred meters from the crash site) and the plane was at the end of its flight from Turkey, it did not catch fire. Still, 9 people perished and the remainder were all but one injured 11 of them seriously.
Only 7% died, pretty good for a plane of that size with a rough landing.