I don’t think anyone seriously views technological developments as having ultra clear cut start and finish lines.
Engineering/technological innovation is an iterative process and we have steps that provide value and capture value to then generate and provide more value to capture and so on and so forth.
I don’t think having a universal agreement of what AGI is matters, like at all.
The entire reason that people are hating from the sidelines is because there's no clear finish line.
"Just wait for AGI" is as unsubstantial as the comments you are criticizing.