The second part of this ruling touches on that.
[info2]If you control "Black Garden", when you activate "Scapegoat" the effect of "Black Garden" will activate after your "Sheep Tokens" are Special Summoned, but its effect will disappear. If instead, your opponent activates "Scapegoat", after they Special Summon their "Sheep Tokens" the effect of "Black Garden" activates, and when it resolves you will Special Summon the Rose Token.
[/info2]
So in the second scenario, Scapegoat resolves and summons four Sheep Tokens at the same time, then Black Garden activates and Special Summons only 1 Rose Token.
(I realize there's only one space left anyway, but again, this sounds like one of those instances where they would have mentioned why your getting only 1 token, and not "Special Summon the Rose Token".