I guess you're right about the site. It looks like he hasn't updated the pics in a while. What I can tell you is that he has been purchasing the 3 piece since we have had them in stock and we haven't had any complaints. In fact, we were speaking to him last night and asked him about it specifically. He stated that there was a slight inconvenience in the beginning in regard to the installation process because they were accustomed to the 1 piece, but quickly got the process down. He did not mention any problems with the appearance or function of the 3 piece.
Looking at the first pic you posted, I agree that at that angle it does look a bit awkward. Combine that with the crank length and the pedal issue and I will certainly concede that for the cruiser style bike the 3 piece cranks are not the best option. I guess that was never really in question. However, for those that have a 3-piece crank bottom bracket, the 3 piece kit is the only choice.
This is why we anticipated that once we could include the Chinese sourced adapter kit at no extra charge, the best option would be to package with the 3 piece cranks. This standardized kit would fit either style bike right out of the box for a single price. Then, those consumers who owned a 1 piece bike and disliked the appearance, size, or pedal compatibility could choose to purchase the 1 piece crank separately. This seems like the most logical and fair choice. We satisfy either type of consumer for the same price with a single kit and we aren't forcing anyone to buy an additional part in order for the kit to function on their specific type of bike.
However, I'm a reasonable man, and I have been around long enough to know that the market doesn't always follow logic, so by all means I'm willing to do whatever the market demands. At this point I am still not certain of exactly what that is. At least, I'm not sure what the ratio is. Perhaps we should start a unbiased poll and see how many people prefer 1 piece to 3 piece? This might provide some solid feedback.
Also, in regard to the crank length, I will talk to Don and see if we can spec them a little longer. Regardless of whether they are used on either bike, they could stand to be a bit longer.