wrong-in-all-the-right-ways
"Broad usability is I think the actual reason why we standardized, and flexibility and unpredictability were the main benefits of the older system."
"Like, freeform jutsu are crazy chakra inefficient and so costly if you don't have perfect prodigal control, including freeform fuinjutsu. So, probably there'd only be a couple of people in Kiri who could become full shinobi under the old system, Isobu thinks - more of them could use just a bloodline, but those're inherently pretty limited."
"...Which, that produces extremely dramatic selection effects for the average chakra user from before any sort of standardization started, honestly."
"We've got weak shinobi now - but I'm pretty sure we've got way more strong shinobi, too, and not even just because our population's higher than it was a thousand years ago. And we do have documentation back to just before the Founder's era, so we know we're stronger than they were back before the most recent standardization move, and - shinobi populations have been exploding since, mostly 'cause we're actually able to train civilians now."
"And - I use freeform ninjutsu pretty much only, and I'd have been in the top ten largest chakra capacities at twelve even without Isobu, so there's never been any point in bothering with tightly defined techniques for me - if I didn't recover chakra faster than I'm physically capable of sustainedly burning it, I'd have to worry about efficiency, but, I don't, so."