You are correct. I can't even speak one word of English.
Surely it makes much more sense to say that four-winged dragonflies and two-winged flies were each designed to do what they do do, and what they do do, they do do well!
(See, I was right about the Crap thing. You said DO DO twice.
What empirical evidence does the author cite to support this assertion?
Once again, the fact that they have survived as a species, for that long, and with the same basic form, (or model).
The 'experience' is that is has continually worked for, say, 250 million years. Time after time.
We observed that, and that, is the basis of empirical knowledge.
How does that support his assertion, and how can you test this supposed design?