Boeser is a 1 dimensional forward that played with better linemates
Boeser's most common line mates were Di Giuseppe and Miller versus Smith having Karlsson and Nic Roy.
Also, if we are talking intangibles Smith has a lot. I just don't think he is what I'd consider a "great addition". He's another Rust, Rakell, Granlund (in his prime) type. Solid two way forward who can play all situations, positional flexibility, but I think Vegas is a better team replacing Smith with Barbashev.
You brought up EV Strength production. I'm just saying Smith is 90th amongst forwards last season. That's good especially for his usage. But last year was one of his best years. Would it surprise anyone to see him come here, struggle and be a bit of a disappointment at 32?