Never thought about that, good point. I recall the angry letter to Sanctuary posted here where Moz bemoaned the lack of marketing nous. If it is that connotation, then that's not a good signal for the relationship with Harvest.
As a German, I've never heard of the charts that 'Istanbul' is supposed to top. There is only one official sales chart (which is crap). All the others, inclusive iTunes chart, are more or less 'private' and do not mirror anything relevant.
So what we're leading to here, is a made-up statistic intended as a statement on the way the record industry works, and in particular Harvest? He could have said #1 on the Mongolian goat-herders chart.
When I first read this true-to-you statement I thought he had finally totally lost it. But then yeah, reading comments here, it's clear it must be a piss-take by Moz. Not even he is that ridiculous. Surely!? (the only thing giving me a nagging doubt at the back of my mind is that he has - apparently genuinely - bragged about some meaningless charts over the years, such as US physical singles charts, where only a few hundred copies are sold etc and the positions are meaningless more or less)
As for German college radio, well it is a thing, http://en.wikipedia.org/wiki/List_of_campus_radio_stations#Germany who knows if anyone compiles data for it though. Of course, US college radio - at least in the past , I can't say about today - , was seen as a massive thing, data was collected, and it was seen (probably rightly) as significant.
When I said it was a 'piss take' by Moz, above, I didn't mean to suggest the chart wasn't real (as I was saying, US college radio is well known as having such charts so why not other countries..) but you would hope, at this point, that it is a joke on Moz's part, to have a go at Harvest for the poor chart performance of the singles generally.. well you would hope so..