The meteorological dates for "summer" correspond to June 1 to August 31. That straddles 2 quarters and both halves of the year. What are you going to do if a product launch is in July (+- 1 month)? You can't really use Q3 or H2 because neither of them fully captures that 3 month period.
Yes, I neglected to qualify "summer" with "northern hemisphere", but the substance of my comment doesn't meaningfully change with or without it, nor have I denied in other of my comments that "summer" is ambiguous depending on which hemisphere you're in. You're clearly just looking for stuff to nitpick.
