this is vaguely related to the string theory related post from a day or two ago, it's all bazinga science folks TL;DW string theory is a big thing because people that read pop science really liked it and it took a long time for physicists to come out in force and say "this is untestable garbage"
the standard model is wildly successful, it predicted a boatload of particles which physicists then knew to look for and find; conversely string theory is not really conducive to this kind of experiment-setup and has yet to produce major experimental results