I believe that all other factors kept the same, angle does matter b/c of the amount and time you spend going through the atmosphere. e.g. a shallower angle mea

I believe that all other factors kept the same, angle does matter b/c of the amount and time you spend going through the atmosphere. e.g. a shallower angle means you pass through more atmosphere which leads to more heating time which in turn means to "icier" asteroids burning off more of the ice. I can also imagine a scenario where the asteroid passes so close that it passes through the atmosphere but doesn't actually hit the earth.