Power & Precision.
The power part of this ad is obvious. The precision, not so much. If someone has to strain that much to the point of sweating to simply thread a needle, they have absolutely no precision. What does that say about the product? Its very powerful but it has to work hard to be precise? Or after a number of attempts it’ll get it right? Nup, this ad fails to sell the benefits of the product. Also, it verges on being a boring say it and show it ad. If you show it, there is no need to say it as well.
Brain Dump 
I find the image funny, but im agree with you. The poster doesnt talk about precision. The message that one could understand is that the machine is extremly powerfull, but hard to use , not easy to control . By the other side the image works good in obtaining the people attention. That kind of things are not something so normal, and are very interesting. I will never see Komatsu in the same way.