Yup, i liv in sweden and im hungarian so i know my stuff with uralic languages. I think its mainly about estonia not being on the peninsula, but neither is denmark. The absolute most northern part of denmark is about as north as the mosy southern part of estonia and also estonia is seperate from latvia and lithuania as those are balto-slavic while estonia is uralic as mentioned previously which puts it with finnish and sami in northern europe. Estonia is also very modern and has a well oiled welfare system(at least from the outside, would gladly hear the opinion of an estonian) so all of these make estonia feel pretty nordic.