I look at it this way do I want, from the audience perspective, a left handed or right handed drummer performing on this piece. I understand Sven-Arne point of view but I agree with Soens question/point.
I have raised this before and was told you do not pan a piano/keyboard from right to left i.e. bass on the right to treble on the left which is true as most people understand or have a perception of how sound spreads across a piano.
But when viewing a band on stage they have visual feedback as well as aural, if the drummer was a right handed drummer and proceeded to do a run around his kit from audience right to audience left and the kit is miked and panned they would expect the sound to go from right to left. However most drum sample kits would have the sound pan left to right from the audiences view. Fortunately Superior drummer, which I use when I use drums, has an instant pan reversal switch. Not really played with Addictive or Session drummer.