The thing about Jeremy is he doesn't mess about, and try to be funny; he takes the dancing seriously and works really hard to get it right - which, believe me, is as much as any dance teacher can ask. He also does his utmost to perform, which isn't easy for someone who is basically a newsreader/presenter, as opposed to an actor or performer.
The sad fact is that no matter how hard someone tries, there are some who just haven't got "it"; in the same way as - even with training - not everyone can sing, or run fast enough to win an Olympic Gold, some can, some can't!
However, I do feel that if Jeremy enjoys the dancing, he should continue after Strictly. With his attitude, if he started at the beginning, either in a class, or with a teacher of his choosing, he could take whatever time he needed to learn the basics, instead of having to learn an entertaining routine in a few days, I honestly think he could be a decent dancer. Not competition level perhaps, but certainly someone who anyone would be proud to dance with.
In the meantime he is a thoroughly nice guy, who, while his dancing may not be a good as some of the others, always brings a smile to my face.