I read that as one of several completely bogus attempts to link something 'good' with the all-seating policy. In the almost 30 years (that's a generation) since all-seating the attitude of just about all of the population has changed towards BAME people. The increase is not due solely to all-seater grounds and I wouldn't be that surprised if it actually works against BAME attendance - imagine having to sit for 90 minutes next to dannyc.
The other really big lie in that statement is that the increase in attendances is down to all-seaters. It is partly but other things have made as much difference, video, less stupid policing, more effective segregation and quite possibly better marketing of the game.
Apparently, all-seater stadia have ensured that we enjoy "modern, comfortable, and inviting facilities for spectators; ". f**k off to Roots Hall or a dozen other shiteholes including ours.
On the whole, though, I agree with Clive of India. The whole statement is a wordy "f**k you!" to proper football fans, over-embellished by a bunch of knob-ends who think going to Leicester is slumming it.