The biggest draw to Chrome is the dev tools. The debugger especially is on par with Visual Studio, may be better, and smooth (too smooth actually, especially the scrolling) whereas Firefox chokes 90% of the time as if it were created by novices. For instance, the break point never works, and if it does, the variable values are undefined. I am using v60 but this has been happening for many versions now. I have never faced a hiccup with Chrome. That said, I use Chrome exclusively for debugging and do general development and browsing exclusively on FF. Only if FF could improve theirs and spare us running two memory hogging browsers simultaneously.
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As for the topic, I am not sure how much of this is out of genuine concern for the users and how much is opportunistic jabs at the competitor's revenue. Will the jabs lead to hooks and upper cuts and eventual KO? IDK but it seems like we have a nice match on.