I find it surprising that 1/2 of the scouts don't look at a radar gun. Whether they personally view it as important or not, I would think it was at least cya data when recommending talent.
I think the context of the comment about radar readings needs to be provided. I think the general idea is that while scouting kids, you don't look at stats to make a case to your bosses. It is the best way to get dismissed as a scout not worth your salt. A hitter, for instance, can have healthy stats, but that is with the use of an aluminum bat and perhaps less than good competition. Instead, as a scout, you'd rather write home about bat speed, compact swing, good approach, took an outside pitch the other way, turned on an inside pitch, worked the count, did not expand the zone, hit behind a runner, ran hard on a ground ball, ran the bases well, etc. So in terms of the radar gun, I'm thinking that they won't provide radar gun readings without the other information in place. If they think providing a radar gun reading of "81" mph is important, then they'll do it... but probably with the caveat of "that will increase as his body size increases and mechanics are strengthened". As an example: Roy Oswalt threw 82 or so in High School. Tops. His smallish size made it almost hard to think he'll one day start topping the radar readings at 96 mph. So most scouts recommended passing or taking him late in the draft. Houston selected him as a draft and follow, asking him to go to college to get some more strength and conditioning under his belt. He did and lo and behold Oswalt started throwing in the low 90s and projecting to get even better. So Houston paid Oswalt for the improvement because if they did not, Oswalt goes back into the draft and gets 5th round money.
The rest is history.
So in the context of the story I just told you, how important do you think the scout felt a radar reading was? BTW - most pundits like BA dismissed Houston's selection of Jordan Lyles with a high pick because he was on no one's radar (other than Atlanta). Why? Because BA looks at stats to make their judgment and thus could not understand why Houston (or Atlanta) had him rated this high. Lyles has a great athletic body that could in time add more velocity to his already good stuff. If he stays healthy and improves, then they will have a really great prospect on their hands.