It was reported in the wider media, I've provided several links in this thread. Its not being reported on currently as there has been restrictions in place since they were charged at their initial court appearance.
Given that there has been, and if past experience is anything to go by, undoubtedly will be further coverage on completion what exactly is TR exposing?
You're claiming no mainstream media have covered it but I've given you links to, among others, the BBC and Mail. As mainstream as you can get.
Figured I might as well look at the data myself.
The last census was in 2011 and shows the Muslim population of Britain as 2,786,635, 4.4% of the total population. It could well be 5% by now as the influx of refugees will have increased the numbers.
Finding figures for offences by Muslims is difficult as the CPS don't record any stats by religion. You have to go off ethnicity and even then there's not a whole lot of data.
The 2011 CEOP study breaks down grooming gangs as 30% white, 28% Asian 3% black and 38% unknown which doesn't really show much with so many unknown although the study suggests non white ethnicity is more likely to be recorded.
A further study by the CEOP had grooming gangs targeting vulnerable children as 75% Asian, 17% white, 5% black and 3% Arab. That same study had grooming gangs targeting children due to sexual interest as 100% white.
Another study by the government stated 36% of grooming gangs were white, 27% Asian, 16% black and 16% undeclared.
For child sexual abuse in total, not just grooming gangs, its 90% white, 4% Asian, 3% black.
For reference for the population of the UK the breakdown is 87% white, 6.9% Asian, 3% black.
So it is fair to say you can state that there is a Muslim issue if you pick selected studies and make a correlation that all those of a certain ethnicity are Muslim. I would tend to term it more an Asian issue, and religion can certainly play a part in that. And of course it is something that most definitely should be addressed.
The problem I have with the likes of Robinson shouting from the rooftops about Muslims, even if you ignore any doubts about the quality of data, is that there's a danger that the message is confused and grooming gangs being a Muslim problem becomes, in the general publics mind, all child sexual abuse is a Muslim problem. That is worrying as it assists in allowing the biggest group of offenders to have the spotlight taken off them.