"Moving from Cheer to Joy, from Joy to All"--Huh?: Inaccuracy in Randall Jarrell's "Next Day."

Since Joy is a dishwashing liquid and Cheer and All are laundry detergents, how does the speaker in Randall Jarrell's "Next Day" " [move] from Cheer to Joy, from Joy to All"? Is the dishwashing liquid in the supermarket stocked between brands of laundry detergent? Is the heavy-handed irony more important than accuracy?