"qualified developers" is probably the key word there. These bootcamps are all trying to train out a pretty specific set of basic proficiencies. That's not to say the training can't be useful, it's just to say that they all seem to be going for the same basic web development skills, and probably the majority of companies looking to employ developers and looking for more than that, or something entirely different.
Could also just be saturation in general. This is not the first closing announcement in recent weeks.