"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.
I think this comment nails it to be honest, I am a bootcamp grad and a lot of the time I do feel that most junior web devs are pushed into the cult of Javascript very early, React is pushed as if gospel and whilst much "emphasis" (IMO only in spoken ways) is placed on being a full-stack, I feel that there is next to no real education provided on basic back end/operations skills. So most of the grads come out as front-enders with front end skills and very little understanding of how front end decisions impact (and help in many cases) the back end and as a result, the entire stack. It makes me kinda sad tbh, because I find the back end tasks super engaging and they really fill out the gaps in your knowledge, especially as a Junior.
I don't know where the parent graduated from, but as mentioned above, I'm a DBC grad from 2014 and we were mostly taught Rails, which is entirely a backend framework. There was a decent amount of data structure work, a little bit of algorithm work, and very little ops. Students quickly and shallowly learned JS frameworks for their final projects. After 2.5 years employed, I've found that the relative lack of algo work didn't matter in the least - I'm a web dev, at least right now, and I'm not implementing algorithms. Ops/infrastructure/deployment is the area where I was most lacking, and where I've grown the most, but I don't really know where you would fit it into the curriculum, or even if it would be valuable, given how many different permutations of infrastructure you can encounter, even working in the exact same coding stack.
Could also just be saturation in general. This is not the first closing announcement in recent weeks.