Tony.
You probably don't know me as I was being a smart a**e in my address to you.
Yes I agree. Airspeed monitoring is important on take off. Of course it is. However, it is the rate of airspeed increase (hopefully it is increasing!) that may give a clue, something maybe amiss. Whether the crew in this instance got airborne I don't know.
Picking an aircraft up from maintenance, no matter how much work has been done or how little and flying the thing, you have made yourself a "test pilot" of some degree, like it or not.