It should be obvious from the previous statement the Apostle Paul held no respect for false teachers, and he thought the best thing for a deceiver would be their inability to reproduce.
It staggers my mind when I consider the naivety of our present generation of “evangelicals”, who consider themselves spiritual when they refuse to judge the preaching of others. The Apostle Paul thought no such thing, “I marvel that you are so soon removed from him that called you into the grace of Christ unto another gospel: Which is not another; but there be some that trouble you, and would pervert the gospel of Christ” Galatians 1:6-7
To pervert the words of any mere man is never a good thing, however, to pervert the words of the infinitely powerful, correct, just judge, and holy God is infinitely worse. There are men pleasers and there are God pleasers, men pleasers do just that, they seek to please men by appearing to be good teachers of Christ, however in reality they are deceivers because they do not seek to please the only One who is inherently good.
“For do I now persuade men, or God? Or do I seek to please men? For if I yet pleased men, I should not be the slave of Christ” Galatians 1:10