I remember people arguing in a thread a while ago about the financial longevity and user-base sustenance of FireFox. Many were arguing that FireFox needed something fresh and different and also needed to identify their target audience.

When Mozilla releases this, which is at least remotely intriguing, many are quick to find small deleterious criticisms.

The fact of the matter is that they are not removing the earlier dev-tools and nobody is forcing anybody to migrate to it. They are just trying to make another tool to help people. Honestly, if you put these arguments in any other context, either software or real life, they sound absolutely ridiculous.