I've read the blog, and the author has certainly raised a large number of points, one or two of which I'll comment on.
I think it's true that there has been a confusion between anti Muslim and Islamophobia.
I think it's perfectly reasonable to speak out against extremism wherever it is found.
I can understand the frustration of mainly young working class men at their political powerlessness and the way in which political parties and many pressure groups are organised and run and whose membership is largely middle class.
However, the EDL is made up of loose confederation of football hooligans (many of the supporters have a long list of previous) far right extremists and assorted hangers on who find it provides a group to belong to and an opportunity for noisy and possibly violent activity in the marches which they organise.
The author also questions the use of 'Muslim areas'. Well, like it or not, this country, and indeed most countries, have localities where people of similar culture and background live close to each other. This is the case whether it's Hampstead or Hackney, or the Wirral or Warrington. And of course it's provocative when demonstrations are planned in those areas.
And finally, it seems to me that if any members (and the EDL don't have members, which makes it tricky to analyse) are genuine about opposing extreme Islamicism, there is no surer way to drive moderate Muslims into it than the bahaviour of the EDL
Wiki has a considered article on the EDL with many interesting links and references.