I think what they are saying is that framing the answer to the question, “What causes the seasons the change?” in terms of “tilt” conveys a misunderstanding of

I think what they are saying is that framing the answer to the question, “What causes the seasons the change?” in terms of “tilt” conveys a misunderstanding of how the seasons work. Yes, the earth is tilted on its axis. Yes, this tilt affects how much energy is absorbed (seasons). No, the seasons do not change because of the tilt of the earth. The tilt of the earth does not change. The seasons change because the earth is rotating around the sun. That is, on one side of the sun the northern hemisphere experiences summer and on the other side, winter. It _is_ our orbit that causes seasons to _change_. Said another way, if the earth stopped orbiting seasons would stop changing.