Let's be fair here for a minute - Pulisic was contributing those numbers in his teens. If you expected him to produce 20 goals and 20 assists per season at 17-19 years old, then you must be crazy. Not everyone is Mbappe in their teens! I don't know whether you watch him regularly but based on what I've seen, Pulisic definitely has the talent and potential to be one of the best in the future. It's not right to be judging him solely on goals/assists and/or brushing him side because of the 'American hype' factor. If given the choice, I don't think he would want all this spotlight on him, certainly not when he's not the finished article just yet.
Also, goals are goals and assists are assists. If you're gonna start be picky about how/when/where they come, then you should start doing that for everyone. And many of Pulisic's assists have come against weak CL and DFB Pokal sides? 16 of his 24 assists for Dortmund have come in the Bundesliga while he's got only 4 in the DFB Pokal and 4 in the Champions League. How is that "many of his assists have come against weak CL qualifying and DFB Pokal sides"?