Well, since the law specifically mentions selling more American LNG to Europe as one of its purposes, Europeans are naturally wary.

I've read somewhere yesterday (BBC I believe) that EU got assurances that their businesses won't be unfairly targeted. The commission is placated for now, although Junker said they reserve the right to answer accordingly if the situation changes. So, for the time being, Nordstream 2 and other projects are continuing. I'll try to find the article.