Thats absolutely untrue, and I'm irritated at you for promoting it. People in this thread we saying that miners couldn't have different policies and that we were stuck with this value in the futurebecause the protocol changed. People like me came in and said— no, it's not a protocol change, it's a configurable setting— and here you are saying it's a protocol change again.  It's not— not in the language we normally use to discuss Bitcoin. Miners are free to change settings here, policy is free to change in the future.

It's mining and relay node _policy_, not a protocol rule.   Please don't confuse matters by using vague language when you can instead describe exactly what it does.  This works exactly the same as the other "standard transaction" rules— zero value outputs, multisig with a dozen keys, outputs less than <0.01 without a fee (initially of 0.01 later reduced to 0.0005, and to be reduced to 0.0001 in 0.8.2), etc.  Transactions 'breaking' the IsStandard rule do get mined.