'Killa' to answer yr original question....NO there is no logic to all this just take a look at two pages of much to do about nufin'! Amazing that two pages of replies where generated over something so pedantic.
We all know SOP's are there & for good reasons (mostly) but they are now totally overtaking common sense, something that was intuitive in pilots, that's now been bred out of them & replaced with monkey see monkey do!
Common sense no longer has a place in aviation you have to justify yr every fart, we can thank the corrupt judicial system for that!
There must be a lot of old salt pilots out there now retired sitting back & laughing their heads off thinking OMG look what aviation has become!