It seems like a factual claim, not a sentiment. Languages do need to develop a critical mass of resources related to them, people need to provide services for

It seems like a factual claim, not a sentiment. Languages do need to develop a critical mass of resources related to them, people need to provide services for them, and you do want to identify which ones are official. For that purpose, a brand identity is going to be helpful. (At least as helpful as a brand can be.) In a nutshell, it's about ensuring people can distinguish between golang.org and w3schools.com.