You never know the whole story about the condition of an orchid until you have seen the roots. The top of the plant will live off of stored energy and look good even when the roots are quite damaged. Yes, it will eventually run out and the top will suffer, you won't know until you get it out of the pot.
When I posted about Blc Eagle Island 'Sangria' AM/AOS the other day, I predicted that it would bloom this year. This was based more on the roots than on what the top looked like.