apple usually does stringent tests before refurbed macs are sold. If a mac was returned for IR they replace the screen. Or else if in their test they notice an issue they replace. Plus you have a 1 year warranty to handle issues post 14 day period.
Pretty sure I said "half of", implying that others were returned for other reasons. As in, if it WAS returned because of the screen, would they fix it before reselling it.
apple usually does stringent tests before refurbed macs are sold. If a mac was returned for IR they replace the screen. Or else if in their test they notice an issue they replace. Plus you have a 1 year warranty to handle issues post 14 day period.