Long-time lurker/reader here. My own observation of NBoC after watching them (albeit less and less) for the last 6-7 years, is that the women of the company are getting skinnier and skinnier to the point where they do not look good/healthy. As a former dance student and lifelong audience member, I'm well aware of ballet history and the "ballet aesthetic". However, there is a difference between individual company members appearing gaunt and an overall trend (at least among the women), which suggests that it is coming from the top. Excessive leanness has wide impacts on long-term health (e.g., muscle recovery, joint health, energy, etc.), but it also has the effect of accelerating the appearance of aging (hollowed out faces, sunken eyes, dull colour, etc). Some of my favourite dancers seem to have aged 10 years in less than 5 actual years. It's alarming, and in conjunction with inexplicable programming/staffing/pricing decisions, it has greatly diminished my interest in attending productions (former subscriber, went to one performance this year and one last year).
I was particularly struck by the contrast with how strong and healthy the Australian Ballet looked in their World Ballet Day presentation. Pacific Northwest Ballet as well.