Yes, but the folks who are now complaining about Go not being 'community-led' enough were pushing for a module system ("dep") that does not allow for this, and

Yes, but the folks who are now complaining about Go not being 'community-led' enough were pushing for a module system ("dep") that does not allow for this, and being told that not allowing multiple major versions in the same build was indeed a major problem (and even a showstopper) with their approach. I'm just pointing out that this is clearly a bad argument for calling Go "not community led"! Sorry if that was unclear.