You can read the requirements (and more) here. [1]
----
In 2014, NASA awarded separate fixed-price contracts to Boeing and SpaceX to develop their respective systems and to fly astronauts to the ISS. Each contract required four successful demonstrations to achieve human rating for the system: pad abort, uncrewed orbital test, launch abort, and crewed orbital test.
----
Parachutes are an integral part of the abort tests. If those parachutes fail, which is a somewhat common problem with these designs, then even if the capsule escapes a failing rocket, they're going to head the ground like a rock.
----
In 2014, NASA awarded separate fixed-price contracts to Boeing and SpaceX to develop their respective systems and to fly astronauts to the ISS. Each contract required four successful demonstrations to achieve human rating for the system: pad abort, uncrewed orbital test, launch abort, and crewed orbital test.
----
Parachutes are an integral part of the abort tests. If those parachutes fail, which is a somewhat common problem with these designs, then even if the capsule escapes a failing rocket, they're going to head the ground like a rock.
[1] - https://en.wikipedia.org/wiki/Commercial_Crew_Program