My problem with the level of vitriol is that it doesn't leave much room for when things are truly bad - this has caused an inconvenience and lost time to him personally, but it's not like he's really suffered, like so many people do on a daily basis around the world. I'd love to see this passion directed at (for example) issues of social justice.
I think you're underestimating the importance of this bug. For the developer of a HTML5 game platform this is a huge roadblock - it can totally ruin gameplay, prevents the use of more complex controls and ultimately hinders adoption.
