Quick way to import shape key animation from Blender to Unity

I was trying to find a way to animate some meshes deforming them in Blender (no armature) and export to Unity. I read a lot of times that Unity would not run these animations, or I found people sharing tips that were not so simple for what I was intending to make.
Then I have found a way to export these animations to Unity, just adding a few more clicks in Blender. It fits perfectly for what I'm doing, that's why I've decided to make a video about how it can be done and share this idea here, but I don't know if it can create some problems in more complex animation systems.
Here it is:

Any suggestion? Thaks! =)

 

so far, i haven't found a quicker way to achieve this (and i have tried every format)... it would be awesome if unity included native support for all blender functionalities... the constrains, the shape keys... the cloth!! some way of importing vertex painting data from blender (because using unity's built in vertex painting tool to make cloth and hair is a pain!)

thanks a lot for your video... it helped me a lot to import shape keys into unity! ohbtw... are you from Brazil? greetings from Bolivia!

 

Well I have several questions.
First what is that blues groove you used in the video? It is really nice.
Second have you tried this animation with facial animation?
Third have you used this with the face shape keys created by makehuman and imported to blender

 

Video isn't available (