I think that the main issue is that debuggers are often dismissed in terms of importance, and many don't see the true value of debugging beyond simple step-by-step execution.

This is not unique to Go: python's several debuggers require cooperation with the inspected process. This is exactly the opposite of a buggy situation. gdb's python support is very limited in terms of debugging capabilities, yet it's the only option you have if you're using an external event loop handler, such as gtk/qt/glib (not so uncommon). I guess I should be grateful I have those at least.