Umm, no, it's not.
The point of all stats is to draw conclusions about the future performance. When folks used to say "oh my god, he had 100 RBI, he is a good hitter", what they were really doing was concluding that 100 RBI meant he was going to continue being a good hitter and help the team win. They were probably writing out future fantasy lineups while they marveled at the RBI totals.
If you can't measure it, then it doesn't help in planning at all. A player may very well have super human hitting skills at 7:52 PM every Friday, but if you can't measure it and plan for it, you have no way to convert that skill into a competitive advantage.