I can think of at least ten children that I currently teach at secondary school, who achieved poorly at SATS because they have very genuine difficulties in accessing the level of work. All, without exception, are sweet, willing children - not misbehaving or naughty or lazy - just nice children who struggle with some diagnosed and undiagnosed learning difficulties. And constantly resitting their SATS (because it WOULD be constant resits for them) would utterly destroy their self confidence; not that they have much anyway as our school system has already made them feel 'thick' by age 11! As if the kids weren't under enough pressure from the levels/sublevels obsession - this is my sixth year of teaching, and I swear the number of childrens struggling with stress / anxiety / mental health issues has jumped up in the last two years at our school. It's bloody depressing, and this wouldn't help that situation!
A more sensible solution to address this would be to provide more funding for students identified as underperforming in the SATS, and to ensure they have support to small group interventions at secondary school. But oh no, that would cost money, so let's just get them to resit a test, and add to teacher's workload to get the students to jump through this hoop.
I can also imagine that as soon if their KS2 SATS level did improve, this would of course change their GCSE target, as if some of them weren't so bloody ridiculous anyway!
Rant over, but if I had been even remotely tempted to vote Conservative (and I wasn't) that ship would have just sailed this morning...