Firstly, I agree with Steelo’s post (as I find myself doing alot reading these forums!)
Secondly, as someone who started digital djing using Traktor 2.0 I can fully understand that there seems to be a big fuss over beatgridding.
As Steelo’s already said, Traktor 2.5 updated and upgraded the beat-gridding process, which as someone who used it in 2.0 I will definitely agree with.
Quite alot of the time Traktor 2.0 would slightly mis-align the grids and I’d find myself browsing youtube to find how to edit the grids, hence the need for tutorials. As of 2.5 I don’t think I’ve needed to do it once though, as most of my problems were with tracks that changed tempo, which is something 2.5 set out to fix.
I also personally think that uploading a ‘how to beat grid in traktor’ video was something that was simple to explain and was used to attract readers to that particular site or blog to increase readership, it’s also a necessary step to explain in any ‘how to dj’ series instead of skipping over and not teaching people how to do it since they’ll go to another course to find the answer.