Could have been he wasn't 100%. Could have been that Lucho wanted to see more of the Barça B players against better opponents. Lucho already knows what Ibi can do. I wouldn't read too much into it.
Lucho also knows what he can do with xavi and iniesta so that would not be an excuse. I really hope that ibi get a fair chance. He is not a bad player. He just had a lot of unlucky injuries and stuff going on. But Now he is 100% fit. So this is the best moment to test him for real.