Software engineers always make the excuse that what they're making now is unimportant, so who cares? But then everything gets built on top of that unimportant thing, and one day the world crashes down. Worse, "fixing the problem" becomes near impossible, because now everything depends on it.
But really the reason not to do it, is there's no need to. There are plenty of other solutions than using Git that work as well or better without all the pitfalls. The lazy engineer picks bad solutions not because it's necessarily easier than the alternatives, but because it's the path of least resistance for themselves.
Not only is this not better, it's often actively worse. But this is excused by the same culture that gave us "move fast and break things". All you have to do is use any modern software to see how that worked out. Slow bug-riddled garbage that we're all now addicted to.