Relying on hackers not knowing how to hack your system (also known as "security by obscurity"), doesn't work. You can safely assume hackers to know and understand your system well. Hence you can not hope for hackers not attacking your system.
What this group have published is nothing secret but standard functionality.
Besides these concerns were raised in smaller group conversations for some time now but no actions were taken to remedy security concerns.
And while marketing was winning technical side of this argument - we had to make these facts known to a wider community while keeping in mind it may make some people unhappy.
Ultimately our goal is successful launch of EOS Blockchain and a duty to EOS token holders.