This article is nothing near 'Scientific'. Next time, please call it random observations or even random musings please.
A few observations of my own:
1. The reason most decks run 8-of-a-kind is indeed redundancy. Splintertwin is not one of them though!
http://www.mtgtop8.com/archetype?a=190&meta=51&f=MO . Out of all the mentioned decks there, most of them run only 1 Kiki. The reasoning behind it is that you don't want or need a Twin card in your opening hand.
2. Goblin Electromancer in UR Storm is actually not equivalent to to Pyro Ascension. Pyro Asc serves to draw more cards on your cantrips. The Goblin Pyromancer is more equivalent to the 8 Rituals that are already being played.
3. Food Chain/Griffin plays 7 Brainstorm effects. It controls the game until it can go off, and has a very good chance to find one before turn 5. Redundancy is not required. It is a strong deck, because the best removal spell doesn't actually kill your combocard (you want to cast it from exile anyway, so PTE is no problem!)
4. I believe Nightveil Specter isn't played because it dies in the mirror due to Bile Blight.
5. Stoneblade in Legacy has the option to play Quest for the Holy Relic. It doesn't. If modern allowed for Stoneforge Mystic, QftHR probably wouldn't see play either.
305.7. If an effect sets a land's subtype to one or more of the basic land types, the land no longer has its old land type. It loses all abilities generated from its rules text and its old land types, and it gains the appropriate mana ability for each new basic land type. Note that this doesn't remove any abilities that were granted to the land by other effects. Setting a land's subtype doesn't add or remove any card types (such as creature) or supertypes (such as basic, legendary, and snow) the land may have. If a land gains one or more land types in addition to its own, it keeps its land types and rules text, and it gains the new land types and mana abilities.
Does this change a land's subtype into a basic land type? NO.
Therefor, 305.7 is not what you are looking for.
Wrong. 305.7 deals with lands changing types, not with permanents becoming land.
What you are actually looking for is Soul Sculptor, which is very simular to this and shows you must explicitly remove all abilities.
Good vs Geist of st Traft, Lingering Souls, Invisible Stalker, planeswalkers, and lots of misc crap.
Agreed. It was popular during it's time and wouldn't cause a riot when reprinted. It also fits with WotC philosophy that creature combat is the only thing that should be playable in Magic.
That's just opinion, and I tend to disagree. Playing stocklists is the best way to learn what real power is, gives you insight in the mind of a great deckbuilder, and wins you games. Those all help in improving your decks in the future.
The best way to learn how weak a card is, is to crunch them underfoot.
The card was last printed in Fifth edition (1997), I think? Age of the 3 mana Land destruction and all...
I basicly came to the same conclusion for my sideboard as well. But I'm mainboarding a Jitte currently (-1 Tragic Slip), and am actually considering swapping that for Sword of Body and Mind (faster clock, no Delver blocks, tokens to carry it).