No need to defend FBX. I wasn’t suggesting anyone should dump FBX. The point of my post was that since what these particular users want is support from Blender to UE someone with a vested interest in it might give it a go. The path is there and all it takes is a dev with the will to do it. Years ago people would sit down and reverse engineer file formats from binary to get things into games. People wrote entire applications dedicated to getting content into games without a shred of source code or help from the engine developers. Now all the code to get it done is freely available but collectively the community has gotten lazy. I don’t mean that to sound as negative as it does 
I mainly say it to try to goad someone into taking up the challenge.
It makes perfect sense UE supports FBX given the nature of their business and I would not expect or ask them to dump it despite my personal feelings for filmbox, and my distaste for intermediate file formats in game development. I don’t even use Blender. I was just a bit perplexed that the Blender community hasn’t taken it upon themselves to create a UE content pipe right out of Blender given everything needed to get it done is in the breeze.