Quoting: mokumboi
I have no idea who you're referring to with the 40 points business, but even if that was the case your math is still way off. Brossoit is a dump and that costs. You somehow have him returning a better goalie+.
Copp (51 pt pace, rental) : 1st + 2nd + prospect
Lehkonen (41 pt pace, pending RFA) : 1st rd prospect + 2nd
H Lindholm (30 pt pace, rental) : 1st + 2nd + 2nd
All notable trades from last year's deadline, where a player less valuable than Smith returned more.
Smith's situation is actually very similar to Toffoli last year, except Smith is older. 2 1/2 years left, 55 pt pace. Toffoli returned a 1st, 2nd rd prospect, 5th, and 4th liner.