People who ask why they don't already allow the balls to be 10.5 psi are missing the point, which is that they are NOT allowed to be 10.5 psi.
If you don't like a rule, you need to get it changed. Until then it's still the !@#$ing rule.
Case in point: 1999. Not long after the No-Goal, I asked a friend in the league (who later played for the Sabres) what he thought. His response: "It's a stupid rule. But the way the rule was written, it's not a goal."
How about getting pulled over for driving 70 in a 55? Try telling the cop you think the speed limit should be 70 there.
Same thing here. Right now, the rule exists, and it was broken. Period.