This map would also be surprising to Europeans.
This map was generated based on data from Eurostat, "who bases these number on police reports from each country." (sic, cf. https://landgeist.com/2021/10/12/robbery-rate/).
So... the obvious question, then, is how many robberies do not result in a police reports in each country, and how good each country is at reporting all robberies to Eurostat.
I suspect that this map is more of a reflection of the rate of reporting for robberies than the actual rate of robberies, which is why the map is so surprising: it's misleading and does not reflect reality.