Google Spams its Own Adwords Communications?

Yup, sounds ironic, however while clearing my inbox down this evening, I delved into the spam folder and noticed an odd email. The monthly Google Adwords results email that gets sent out was spammed by Google Mail.

I’ve included a screenshot below and I’ve blurred out the sensitive parts as it was for a clients campaign and my prolific use of filters & labels in Google Mail is worth an article of its own. However is it just me that thinks its a little ironic that Google would identify their own mail as spam?