Fiddlesticks. Everyone has bias. Newspapers have bias not only on how they report on things but even which things they report on.
How can someone look at a chart with a 64% drop and say everything is fine? If you lost 64% of your money, pets, anything, that's a significant amount. Just going off that, I'd say most people would see that as something rather concerning for a product line. Some people can hand wave it away as not many were released and you did write 3.8 million of anything is impressive, but...it was reported that for Disney Infinity, the Hulk figure alone sold 1 million units, so 3.8M for a bunch of figures doesn't seem like that big a deal. Again, coupled with the retail landscape, I am forced to say that looks bad.
Should Nintendo ride trends to the bottom like Activision loves to? Now is the chance for a fresh start.
Oh, the setting the world on fire comment wrt Skylanders is due to retailers being much more gun shy about this year's title when they've traditionally been very bullish.