The reason I prefer real-time runs to in-game runs is because as a TASer, real-time makes sense to me. Using a different system of measurement for this game seems unnecessary, even though it is a well-defined system within the game itself. I see in-game time as (inadvertantly, but conveniently) removing some of the tasks of optimizing this game - including some aspects overall route planning and lag management. So it is less impressive for me to watch an in-game aimed TAS, though very minorly so.
I think it's also important to note that in-game time is only displayed in minutes. Seeing more detail requires viewing the game's RAM. So, if a run improves the in-game time of a previous run by some seconds, but not enough to change the end time's minute marker, and it is slower in real-time, should this be a candidate for obsoletion? For that case, I would say no.
But if I say no for that case, then I can't say yes to the case where the in-game minute is improved, because then I feel it would be basing much of the criteria on a changed viewable time, and that conflicts directly with the notion that the frame count should be taken with a grain of salt for in-game aiming runs.
Although this run has in-game timer as a goal, I do not think the way this timer works in Super Metroid coincides well with the site, which displays the time of each run based on frame count. So, I would say that this should not obsolete the previous run. However, if it is not published, I believe that an explanation should be added to the currently published movie which links to this submission.
And yes, some games do use in-game time, such as Sonic. So publishing it is not out of the question. The difference here is that the community is split on the issue. Maybe an informal poll regarding the feelings for this game would be enlightening.
Also, I don't like the way discussions go on this subject, so don't expect me to elaborate my thoughts, here or otherwise. (This is why I waited this long to offer my opinion)
Finally, I was entertained by this run, and voted yes.
Edit: I just remembered that I mentioned a few days ago that I thought both kinds should be able to obsolete each other, similar to Bionic Commando (U) and (J). But after reading
this post by Warp, I am not as favorable to that idea as I was.