SCRUM is just a bunch of small Waterfalls. In SCRUM, we have 2-week sprints. It's not important when one of the sprints will fail, because we will adjust follow

SCRUM is just a bunch of small Waterfalls. In SCRUM, we have 2-week sprints. It's not important when one of the sprints will fail, because we will adjust following one. Moreover, we plan for first 2 sprints to fail anyway. Why we should use something else, more complex, instead of Waterfall, for a single sprint? Waterfall is good enough and predictable enough for a 2-week sprint. Yes, the result of a single waterfall will be bad, we plan for that, but accumulation of knowledge will lead us to success.