Annoying...
This attack is very good at exposing bad software.
Yes it is.
Bitcoin core. Protocol incompetently designed so it has malleability bug. Protocol and software incompetently maintained because bug has yet to be fixed after several years. Protocol developers incompetent in foreseeing and avoiding problems their incompetent code and designs have created. Leaders unable to lead, paralyzed by fear.
The problem is not the protocol developers (core devs) but the rather with the other wallet developers who support and use High S values. If they are so incompetent, why don't you help and write code and implementations? Please read the thread before posting FUD like this.