I have certainly read advice (not sure where) that suggests you should just "ignore" relapse statistics. It just doesn't feel right to me by temperament...
I think this is interesting and useful information if approached in the right way. I'm professionally bound as a teacher to say that stats are always good if used properly.
At the risk of being simplistic: the stats suggest that overcoming active addiction and then staying sober long term
is difficult. But it shows that people do do it. There's no reason not to be empowered by the second point.
That said, I can see that a preoccupation with these stats might be unhealthy as it might be the addict's addiction searching for justification to drink again. I did, for example, see a video of an addiction specialist saying that relapses were "to be expected" and were "part of the process" for many. This set alarm bells ringing, because I was immediately envisioning a guilt free relapse (i.e. deliberately skewing what he was saying to try to resurrect the "right to drink").
Anyway, I'm rambling and mostly just repeating what others have said...