Let's keep in mind that Europa have access to a vast amount of engineering power, and have a space to keep a huge amount of spare parts / resources (thanks to being Mack). Very few parks in the world have that option, and I'm sure many parks envy the position they're in. Equally, it's incredible from a H&S perspective that they're in a position to reopen the ride less than 24hrs later - even if a UK park, for example, were able to replace and test a chain in such a time frame, a H&S investigation would delay a reopening.
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In a slightly more light hearted accident, Billybird Park in Zeelandsedijk, Netherlands, has had to close down a recently opened slide in their park, following a few incidents like this:
Just looking at the slide, you have to wonder how this wasn't foreseen...