You have never flown in combat, have you? At Aviano, we had bad guys surveilling the runways 24-7 from a spot right along centerline just across the road. Folks like that know how to call in mortars. No aircraft recovers from a cratered runway. Next, combat flight schedules can often call for a rapid launch/recovery cycle and another aircraft might wander onto the active.
Umm, if you are flairing a few feet off the ground your goal is landing. Period.