SpaceX may be ambitious, but it isn't delusional. While it's still trying to perfect rocket landing on sea as well as landing human-bearing spacecraft, it has contracts to fulfill, including those that happen to require landing human-bearing spacecraft. In order to do so, it needs to first make sure that the traditional parachute landing is also perfect. That's exactly what it did in Arizona with what was deemed a successful test of a Parachute Drop Test for what would be a Crew Dragon landing. And this time, not a single rocket was fired.