Because Hasbro loves to sell you toys from your favorite characters. Hooray for capitalism. :P
 

 
In all honesty, taking aside jokes, this is just a lighthearted jab. I loved the show, at his best, and also at his worst, I enjoyed the colorful characters and the very wholesome experience. I must say, thanks to this show I started to take an interest in entertainment in general since I joined to the herd in 2013. Sure, it’s a show to sell toy and all, but it doesn’t change that the experience was pretty amazing, at least for me. So thanks for this 10 years and awaiting for G5. Happy anniversary guys.  
:)