Facebook extension loading

Hi,

seems that when you add the Facebook extension to your lib, but you do not express an explicit use of the pixel through one of the standard action choices (e.g. add action "Extension = Facebook Pixel", "Action Type = Send Page View"), the Facebook pixel code is not loaded.

We encountered this problem on one of our sites, where we configure the extension with it's pixel ID, but where we have custom javascript code to make the "fbq" calls. The pixel code is not loaded, and thus facebook pixels are not fired...

What is the reasoning behind this except maybe for some lib code optimalisation?

Stefan