BB, nothing wouuld change. please condsider this chronological analysis.
Harry Truman awarded Legion of Merit to Mihailovich in May 1948. Tito became renegade from Stalin's block not in June 1948 but later, in 1949.
The question here is - why would U.S. care about upsetting Tito when Tito at that time (May 1948) was still Stalin's lapdog and the US-Tito relations were at it's lowest. At least according to official historical records.
I see it somewhat differently: Tito was a triple agent before WWII and after WWII U.S. offered him substantial aid if he turns away from Stalin. Ruskies figuered it out and attacked Tito accusing him of treason. Tito was thrown from the Stalin lap, he did not run away on its own. To improve his bargaining position with the Americans, and to safeguard iron grip at home at first Tito publicly pretended to be bent on mending the ties with Stalin. After one year, he suddenly reinvented himself as Great renegade from the Communist block.
I believe this is the background that can explain U.S. behavior regarding Legion of Honour to Mihailovich.
The answers are in the archives, many still being classified. In Serbia, U.S. continued the foreign policy of The Third Reich. I understand why it was suppressed that Serbs were trusted allies - it would be counterproductive to such policy.
The Serbs are living proof that Dr. Kissinger was right - being America's enemy is sometimes inconvenient, being America's friend is invariably fatal.
Maj. Felman and others at least saved their soul for doing what is rigt. That is the true historical lesson of this sad story.
You appear to have studied those dates closely, and found a solution.
I always thought that Tito’s break with Stalin was because Tito fancied himself, “The Stalin of the Balkans”, given that Tito had plans for Albania and was supplying the communist side of the Greek Civil War.