I would agree but there's almost always a root cause for that - bad marketing, sales or simply not grasping the market needs and or simply ignoring the fact tha

I would agree but there's almost always a root cause for that - bad marketing, sales or simply not grasping the market needs and or simply ignoring the fact that there's no market need for what you're building (simply no interest or maybe already entrenched competition where you do not offer nothing unique to sway their client base)