Yes, but if we want to go for "firsts", the Alaskan bronzes [1] predate even that. The academically interesting part of this isn't the Bering Strait connection, but instead what it tells us about the extent of Eurasian trade networks.
I might be wrong, but I don't think anything found at L'Anse was likely to have been actually manufactured in Europe. Instead the artifacts were (probably) made by people originally from Europe (or their decedents) either locally in Canada or in Greenland.
That might be the distinction they are trying to make.
[1] https://doi.org/10.1016/j.jas.2016.04.021