A war has huge costs. Even Assad himself cannot afford it, and Iran alone pays him more than 1 billion in a month to keep him alive. Don't tell me that oppositions have achieved over 3000 TOW missiles, all of their living expenses, and their salaries, ammunition, ... for free, or Gabriel has brought them from heaven.
Easy bro ... It is not that much simple. Saudi hated Mursi, because he was a MB, and Saudi does fear the influence of these type of so called MB moderate islamists in her own society. If saudi king was so in love with secularism, he would have removed sharia laws in his own country. At the same time, he prefers non-revolutionary seculars over the so called moderate islamists in other Arab countries since they are almost harmless for his own kingdom.