Sadly, this seems all too true. I don't know if the publishing houses are in such a hurry to get the books in print and out to the buyers that they don't bother with the editorial process or if they think that the writer has been writing long enough that they don't need to spend the money on an editor. Or the other possibility, the writer has such an inflated ego that he/she thinks their work is too good to need an editor.
Tina