I double checked on the German pattern version (I think, that is the original).
That does say:
rows 1-2 6 times, than row 3 one time.
Does that help you?
For the sleeves you do the whole drop stitch pattern by repeating a few sequences of row 1 and 2, then the other rows as instructed. That is why there are more lines, than you work here.
The comparison between the instruction for the front and the sleeve eradicate the doubt!
When they say "work the drop stitch pattern", they mean: now follow those instructions (not the main pattern (st st)) and then they tell you which rows of that pattern you do how many times.