I use Go a lot and I completely disagree. I have also used Ruby a lot and even though I prefer writing Go most of the time (it depends on the task) bundler is far better.
go mod is the second best I've used for sure, but if someone releaed bundler-but-for-go I'd switch to it in a heartbeat.
I don’t personally have a bone to pick with Go mod, save for how the GOPROXY DoS issue was handled.