Is this any different to Broad not walking or a bowler appealing for an LBW when they know it has been edged onto the pads?
On a basic level, no - it's all against the spirit it the game.
Going a bit deeper, yes it is different, it's an unusual dismissal so will be more of a talking point. The fact Stokes is only the 6th man to be dismissed this way in ODIs shows how rare it is.
The scenarios you listed are now "part of the modern game" (not rightly so, but sadly true) so is not taken as the norm (again, wrongly so) whereas obstructing the field is a once in a blue moon occurrence so gets people talking more.