Back in the early days of space flight, the Soviets did not have large expanses of warm water available to them the Soviets needed to land on land. They use parachutes, and solid rockets that fire in the last second or three of flight to slow down the final touchdown.
The US on the other hand, used water to cushion the landing as it is much simpler.
It is easier to NOT rely on something always working, with no time for backups to take over. So the US took the easy way out historically. a fail of one parachute over water is just a rough landing but over land it most likely would result in injury to the crew.
Orion is not very 'revolutionary' and is not really doing anything new. So it is no surprise they did not try to change the landing mode.
Every pound you send toward the moon is a precious thing from an efficiency point of view The tyranny of the rocket equation carrying 1,500 pounds (680 kilograms)of landing bags to the moon and back when I have a perfectly viable mode of landing in the water near a U.S. coastal site. (US launched craft also had to be capable of a water landing, in the Atlantic off Florida, in the event of a launch failure) As a idea of saving, for every kg of mass you want back, you need to send an additional 17 kg "Est." of mass to get it back from the moon.
Of course the Commercial manned space providers were not planning on water landings, since they must do something revolutionary : make an affordable business case. And landing on land would probably allow refit and reuse of the crew compartment. (NASA does not have to deal with petty things like that, they have a navy at their disposal for recovery and a huge budget).
So SNC with Dream Chaser is a runway lander. Boeing with CST-100 is a land lander, but with the final blow cushioned by air bags. SpaceX planned initially on powered landings for Dragon V2 but that plan has changed. now all over time went back to water landings because NASA is the Queen Bee and that is the way she wants it..
Now in summary Nasa wants everything to be basically the same so everyone lands on water. With nasa budget for SLS ,cost savings and reusability to lower cost are not a highlighted priority. The soviets are willing to accept a higher risk factor as well.