I am not sure about Barca getting this exemption. Clubs have been given exemptions before in all of the big leagues, but the only cases I remember are for goalkeepers. It can be argued that playing a goalkeeper who has no first team experience in the middle of the season is not only a handicap for his team, but also unfair to the integrity of the league where certain opponents can take advantage of a weakness while others can't. But a novice goalkeeper can’t be compared to an untried striker. A 16-year old striker can play with a devil may care attitude and in some cases even galvanize a team. And even if Barcelona have just two strikers — Messi and Griezmann no less — with the squad they have, the solution should be to implement a different tactical system, regardless of how inconvenient it may be mid season. Finally, if said striker is indeed Angel from Getafe, then that would just be a big blow to a great La Liga story. I don’t want it to happen.