Reactionary hyperbolic articles like that are pointless, the initial valid point of him being bad for for Real is a given (more 2nd season then first tho), but it goes into childish defenite black and white view of players. He is never gonna be an Alves, but he is just 23 and shown before this move 2 years ago he has alot of quality to offer if he gets going. Wont be the last player to struggle in a top club and have success elsewhere (that same Alves was said to be finished overhill granpa by same type of people who makes articles like this), this laughing stock BS is just theatre for petty casuals (same casuals who used to laugh and say Real get the best upcoming fullback in him, and Juve got the 2nd fiddle in Sandro).
The move comes with a risk (not skill or physical abilities, but he seems to crumble mentally and is not the smartest of players) but not only to a small degree, his physical and technical qualities are good and he can become a good fullback again, your career doesnt end at that age, regardless of articles like that, things arent that clear and simple in football. Certainly not one of my prefered choices, but he is essentially a market opportunity, fairly good one in a market that lacks quality right fullbacks alot.