Joshua Landis wants missiles

So Joshua Landis, using his long-standing military expertise obtained in graduate studies of the Middle East, calls on the US government to supply the Free Syrian Army gangs and Al-Qa`idah affiliates with anti-aircraft missiles.  I read this and thought: have you noticed this rule about the Syrian conflict?  The most vocal advocates of the armed Syrian opposition gangs in the West (aside from Zionists) are those writers and academics who were for years apologists for the Syrian regime?  I mean, you really can go one-by-one and find that to be true.  Is this guilt?  Or is this a silly attempt to whitewash one's own record? (thanks Dirar)