Previous year (presumably the second consecutive La Niña event) the winter was exceptionally dry in the Alps leading to the current unprecedented snow and ice situation in that area so at least that year the snowfall was very limited.
The article states that the predictions should't be regarded as forecasts so obviously some years might not have the expected changes, but in addition the only expected effect of La Niña in Europe seems to be a drier autumn on the Iberian peninsula so I'm not sure how you arrived at your statements.