FIFA Why not apply the "away goals rule" to break the tie between Egypt and Algeria instead of a play-off?

Algeria and Egypt finished with identical overall records and face-to-head that had both 13 points and +5 goal difference. Algeria beat Egypt 3-1 in Algeria while Egypt defeated Algeria 2-0 in Egypt. FIFA has decided a tiebreaker playoff. Egypt should not have qualified without the need TOPlay-off as he scored an away goal the house while Algeria has not? http://en.wikipedia.org/wiki/2010_FIFA_World_Cup_qualification_-_CAF_Third_Round

Because regulations for the World Cup does not include rules on away goals for the group or "league" play, just to "cup" play in the series face-to-head between Bahrain and Saudi Arabia, Slovenia and Russia. The basic ranking criteria for the league is as follows: 1) Total points 2) 3 goal differential) Goals scored 4) points in total head-head 5) goal difference head-head 6) head-head goals scored (Valid only if at least three teams tied) 7) draw or a neutral site play-off Maybe they should add to head-head away goals before the playoff, but the current rules do not include it.

Egypt vs Algeria 2010 World Cup Qualifier – 14/11/2009