Stats can tell you everything & nothing

I produced a video on my youtube channel looking at the stats produced by the IAAF from the world champs last year and the men's long jump final.

You'll hear and see some of my comment and thoughts in the video below,, but here's a little snippet of a response I gave to one of the commenters on my YT channel who had also looked at the videos.
It's "alarming" when you see so much info and then try to get your head around it and then you begin to think, is this really going to help me? I can't get an angle of take-off nor the contact times of the last three steps and if I did what would it tell me? That my jumpers are slightly slower?? I sort of know that as they don't jump 8.60m!
What's useful is the sprint time over the last 5-10m to the board (and wasn't past of this IAAF study). I have a freelap timing system that I tested for Athletics Weekly and then decided to buy one. It's easy to set up and very portable and I was able to time the 10m-5m & 5m-board segments on the run-up. I'll be making a video on this and working out what else I can do with the kit and then comparing the date that's more everyday and usable with what else I have from the IAAF and other sources vis a vis elite jumpers.