I don't work for Azure and having used both GKE and AKS, I can say GKE is superior, however, I don't understand why this comment isn't cool. It's not like they're capitalizing on your misery. It's a decision you have taken and it's a fair game IMO that they want to emphasize their advantage over you.

Seems fine to me. Frankly, what isn't cool and doesn't look great is you not disclosing you work for Google in this comment.

Its actually appreciated. When a vendor makes a change to screw customers, those customers like me appreciate hearing from the vendor's competitors.