You have to excuse me for the fact I did not read the whole of the article but it seems to me someone is (again) trying to do the obvious; convincing us e.g. core control has nothing to do with low back pain. Well I will put it very simple; 80-90% of all low back pain is called none specific low back pain why? because we have no clue (at least there is no available research which concludes a single cause for this 80-90% of back pain thus it is very easy to find arguments that core control has nothing to do with it. If though w one looks at muscles around a joint (the spine is 1 joint with multiple levels) the sequence muscles are acting can be looked upon as a concerto of Beethoven. What would happen if 1 muscle kicks in 1/2 a sec later? the music would sound awfull wouldn't it? If though a muscle (=instrument) would not kick in at all? Maybe the symphony would still not be a pain in the head or back.
Just wondering......