I enjoyed the BSH article on dev camp.
I've gone the last two years. I haven't read anyone acting like camp observations are gospel -- pretty much everyone concedes, "This is just a prospect camp; take the observations with a grain of salt."
But you can notice things.
And Lindblom, though not fast, has certainly improved his skating to the point where you don't even notice it as a plus or minus, but you notice his frame and you notice his shot.
The very best players, like Provorov and Konecny, just jump out as oozing skill and talent.
And you can see unheralded sleepers like Friedman who flash skills that are very exciting for a player you don't hear much about.
Nobody is saying that drill performances are the best way to forecast future NHL success. But they aren't utterly meaningless, and in the dog days of summer, I'll take any reports I can get.