This article seems to be extremely disingenuous, taking quotes out of context and offering interpretation for them.  

For instance, he did not suggest "that many prominent Catholics are so weak in their faith that they ought to leave the church."  

What he actually said was "Losing people who are members of the Church in name only is an imaginary loss. It may in fact be more honest for those who leave and healthier for those who stay. We should be focused on commitment, not numbers or institutional throw-weight. We have nothing to be afraid of as long as we act with faith and courage."

Nor did he say anything about a church of "fewer but holier believers" being  preferable.  That is Mr. Gibson's spin.  Better to read the speech yourself and then make your determinations.  Most here are not going to agree with him - that is their choice - but read what he actually said.

https://www.romancatholicman.com/courageous-archbishop-chaputs-speech-watershed-moment-american-catholics/