If you read the judgement in Tammy Kitzmiller, et al. v. Dover Area School District, et al, which was where Intelligent Design got killed in the US (although not without effectively bankrupting a school board in the process) you get to see just how threadbare and, dare one say it, stupid the arguments for ID are. And also, of course, that ID is just a camouflage for creationism.
But the real entertainment comes from reading the transcript of the hearings, from which you learn that ID proponents are not just ill-educated (none of the school board in Kitzmiller had an education post 16), but also liars and charlatans as well.
As others have said, teaching of ID is grounds for cessation of funding. As has been shown in Derby and Crawley, the DfE are not afraid to use those powers. Morgan is, unfortunately, less likely to see the intellectual vacuity of ID, but no minister wants to look like a rube, and being seen to be defending Creationists will make you look like a rube. So if you have some evidence (a worksheet, perhaps) then a complaint to Ofsted and the DfE would be fairly effective.
Conspiracy theorists are currently claiming that the downgrading of the Jewish Free School in north London is "political", and that Ofsted have to be seen to be hassling a Jewish school in the aftermath of Trojan Horse, in order to show they are being even-handed. It pains me to say it, but it wouldn't amaze me to learn there was a glimmer of truth in that. If so, they'd be very happy to deliver a kicking to some creationists.