The article isn't blaming homeowners. It's simply pointing out where the illegals are working, how much they are getting paid and the reasons why.
Direct blame is surely not in the article, however with all the 'excuses' going on as to wanting to make a case "that illegals only do work that no one else will do", there is plenty of 'indirect' blame in this article.
Also, considering the source being AP ...
The net of it is that the left wing liberal media continues to paint this picture that this is just an unsolvable problem, etc.
It is quite easy to read between the lines on this article and see the 'intent' of the piece.