I use password managers, but I think the usual way of thinking about them is wrong

Besides password reuse being not recommended, the main issue is: most websites don't give a eff about whether they store your password correctly or not

It's a trust asymmetry, they ask you to provide a password (and most ask one with a lot of BS restrictions) THEN md5 it and put it on the database, or worse

And as said by the article (and implied by the above paragraph), there are better ways of obtaining someone's password - pwd managers are not the weakest link, at least not now