Yes, your points are valid. I just think Elon has shown a certain flair for PR, dropping one well-aimed little bit after another to drive home one orchestrated message. This trip might be one of those opening items, creating media exposure from a wider group than motor or financial reporters.
Also, it's been eerily quiet about European superchargers lately, I can't even find any official permits where I have looked. Someone speculated this silence could be due to a new generation of higher power chargers being in the making. And a German guy (JP) has a couple of videos test-driving a Model S, where he asks the Tesla rep when he can go to Hamburg or Berlin and the reply was: "Ask me again in 3 or 4 weeks"!
There are 82 in the US today but the European number has been frozen at 14 since last Fall. If/when v6 is released combined with Autobahn tuning, sales in DE may take a leap. Fremont production may have jumped lately. Nearing Q1 end, perhaps a hint of current state, Gigafactory plans taking on some concretion, start of delivery in CN, production of LHD, etc might all contribute to support TSLA.
Well, we can dream.