It looks like a very well done experiment, and the results are in line with my experience with the yeast strain. However, for English strains such as WLP002... a more dramatic difference becomes apparent.
At 55-58... fairly clean. (Clean enough the Bud drinkers in my family think the cream ale is a lager) At 75...it gets very estery. I often use WLP002 in my Jannets Brown recipe at 58 and get a very clean beer, I also use the yeast at 68 to 75 in my english ales... and like what I get there as well (very different! Much more fruity esters)
Good news is.. if you want to brew Kolsh or clean ales, this experiment clearly shows that WLP029 is a VERY forgiving yeast and will supply very clean characteristics over a wide range of temperatures.... so if you don't have a temp controlled fermentation, this yeast will certainly help provide clean beers at higher temps!