Because the promise of celibacy is likely to attract homosexuals and abusers too, when homosexuality is considered as much or more of a problem than abuse. I suspect many of them went to the church to hide, or to hope celibacy will cure their sinful desires. Well of course it doesn't cure them, instead they find other men hiding from their own desires.
But now they can quietly live the lives they want. The church protects them and their secrets under a veneer if holiness. But gives safe haven for abusers too, who have their own secrets. It gives abusers power and access to children. And when everyone knows everyone else's secret, it's in all their interests to keep it quiet.
This is why, I think, the Church is ramping up attacks on homosexuals. They know they have many of them. If they make homosexuals the issue, they can ignore the abusers. Paradoxically treating consensual sex as a bigger problem than child abuse.
The Church needs to change it's whole repressive attitude towards sex. I don't know how bunch of old men with "sinful" secrets are going to do that. Probably not very well at all.