But they're not basically the same are they.... One is a beautiful piece of meat, the other... isn't. One is house, and the other isn't.
But with my comparison. One is Luke Skywalker, Jedi Knight, doing Jedi stuff. And the other is Luke Skywalker, Jedi Master, doing Jedi stuff. It's not basically the same, it is the same.
The difference is the context. The Mandalorian Luke is like a beautiful custom made lightsaber, but it doesn't have electronics. Beautiful, but empty and hollow. The Last Jedi Luke has substance. Luke for most of the film, isn't the Luke we are familiar with. Luke has very much sunken into a pit of depression. (Heaven forbid that our heroes should have to deal with mental issues like depression, am I right?) So when Luke walks out on the red stained salt flats of Crait, we have context, a reason to cheer. Luke is returning. This is the Luke Skywalker that we know and love. We don't love the green milk drinking, lightsaber tossing Luke, but that's the point! We aren't supposed to!