The phrase "also matters that" is not correct in standard written English.
It may be intended to emphasize the importance of additional factors or considerations in a discussion.
Example: "While the budget is important, it also matters that we consider the impact on employee morale."
Alternatives: "is also important that" or "also significant that".
It also matters that Snowe is a woman.
It also matters that Obama and his advisers are so obviously alive to the danger of appearing to be big-government liberals and thereby reawakening the great snarling beast of American attack conservatism.
It also matters that Colleen practices what she preaches -- to her and to those she works with and for.
It also matters that he has a stable world, without too many economic and political dislocations caused by our technology revolution.
It also matters that they are followed by a sentence with which they have no logical relation: This process uses a Lincoln submerged arc welding head to run both inside and outside beads automatically.
(It also matters that in America today incomes are becoming more unequal at the same time that most families' incomes have been stagnant for more than a decade after allowing for inflation — a point that Noah notes but does not emphasize).
But it may also matter that there is less corporate-finance business around at the moment.
It also mattered that he was a keen footballer, more in thrall in his telling of it to George Best and Roberto Rivelino than the long-ball game, because something like that "helped when you were at school in Leicestershire with a funny name" (the product of his Genoan ancestry).
It also mattered that the offers meant staying in New York with no more road tours.
It's not only where we find ourselves on the social pyramid that matters, it also matters how that pyramid is shaped.
"What also matters is that they are firmly connected to family and friends," says Jagger.
