This. I feel like the article is a little bit too negative, but I've been something pretty much similar. I moved to SF, worked for about 4 years, loved it, but then moved back to Europe and realised "oh wow, it IS a bubble".
Now I'm excited to eventually go back to the bay, but it was very valuable to take a step back, go away and think about it!
I'm in the exact same situation as you. Worked here for a couple years then left the bay area for a couple months in between jobs and came back.
Taking a step back allowed me to see how most people live outside of the bay area and how big our bubble is. As you I'm excited to be here but I take everything with a grain of salt.
Now I'm excited to eventually go back to the bay, but it was very valuable to take a step back, go away and think about it!