Meyers, Lipa is not saying that its okay not to be a tzaddik at all. He is saying he is not YET a tzaddik, but he still keeps on trying, he’s not getting tired. That acknowledges the struggle to perfect ourselves, and not to give up even if we stumble along the way. I think that’s a very GOOD message.
Actually, I thought it was a beautiful song that expresses honestly how someone may feel when he blundered and wants Hashem to help him, because he’s trying to get back on track. (He was obviously alluding to himself and his recent struggle. I think it takes guts and fortitude to sing about one’s personal nisyonos which became public. Most of us never experience that.)
My favorite line in that song is when he says Who knows how to measure a deed? The way things are measured in this world are not necessarily how their measured “up there”..