It’s also the first fine to be handed out after the GDPR came into effect (the other fines on the page are for infractions discovered before May 2017). Which is one of the reasons the GDPR was passed: previous laws had much less teeth when it came to fines.
It could be a million times higher, but if it's an amount the company in question turns over in less than an hour, it still meaningless. As a fine, it's almost insignificant, but as judicial signal it _is_ important, because it's the first official warning, and ignoring it means the next punitive measure will be orders of magnitude higher.