There are good reasons to be worried about this, less because the Islamists are undemocratic than because of their illiberal tendencies. Some forms of authoritarian government can leave a certain amount of room for economic and other freedoms, and thus might be easier to live with than illiberal democratic populism.
Hay motivos válidos para sentir preocupación al respecto, menos porque los islamistas no sean democráticos que por sus tendencias no liberales.