Comment by captain_perl

After V1, the accelerate-stop distance, the pilot is committed to continue flying.

The cargo area of most airliners is not pressurized, so the gash is not an immediate problem.

In a case like this, the pilots would want to climb to several thousand feet and evaluate the situation before landing.

Looks like the pilot did a great job once it was realized the airplane was damaged of remaining calm and flying the airplane.