Also since national markets in Europe are relatively big by themselves a lot of companies tend to be satisfied with comfort of a single market success.
So if you're spending the same effort anyway, expanding to the US with 300 million people is much more profitable than expanding to Germany with 80 million people, or the Netherlands with 20 million people.
Which is why Spotify became available in Sweden, the US, and the rest of the EU in that order.
Which is verifiably false.
Spotify launched in 2006, and expanded into the US in 2011. You truly believe that it never expanded in the EU in the intervening 5 years? How then did it launch in the UK in 2009? Or how did it have a million paying customers in the EU by the time they launched in the US?
https://en.wikipedia.org/wiki/Spotify#Geographic_availabilit...
Spotify launched in Sweden, Finland, France, Norway, Spain, followed by the United Kingdom and the Netherlands.
After the US expansion, Spotify finally expanded to Andorra, Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, Poland, Portugal, Slovakia and Switzerland
That means Spotify launched for 222 million europeans, expanded to 300 million US-americans, before becoming available for the remaining 281 europeans.
You'd never see a US company launching e.g. only for Washington, Oregon, California and Nevada, expanding to China, and only afterwards become available in the remaining states.
In 2012, after their "expansion" in the US they had five times as many paying users outside the US as in the US.
All that matters is the original comment: "Which is why Spotify became available in Sweden, the US, and the rest of the EU in that order."
Where reality is Spotify became available in 7 countries before attempting to expand in the US.
Which is, funnily, what you literally wrote in your edit:
> That means Spotify launched for 222 million europeans, expanded to 300 million US-americans, before becoming available for the remaining 281 europeans.
Edit Where by "expanded to the US" is literally "failed to capture any significant market for a long time"
Sure, but they still decided to expand to the US, despite a worse outlook, before expanding to the remaining EU countries. As said, you'd never see a US company do that.
I don't think anyone disagrees about that.