I dont get why 10 months of roi is considered bad. No other investment yields this much at the moment. A $5000 rig produces as much monthly profit as letting a condo in my city.
So yeah, sure its bad...
This is probably because people bought mining hardware with the expectation of a 3-month ROI which was the case just a few months ago (December 2017). Aside from that, theres probably the factor that mining profit is going down daily and may possible reach a point where profit is 0. Easily understandable why that is what people are afraid of, it's bad...