Yes, many of the worst schools were academies - particularly the Park View chain. Three of their schools come out very badly indeed.
Gove has promoted 'freedom' for schools, freedom from local accountability, freedom to be ordered around by Gove - and now we can see that it was a very bad idea. Gove can't micromanage every school from Westminster, much as he'd like to, so problems are not identified and resolved.
Mind you, Birmingham LEA may not have been much better at handling this, the council is shocking. Social services have been failing desperately for years, leading to the deaths of several children - yet the council chief exec is the highest-paid in the country. (Unless someone has overtaken him in the last couple of months.)