Block breaking animation using command

A new entity, Mannequin, was recently added. I think it would be cool if we could use it to make animations. The /swing command allows a mannequin (or other similar entity) to perform a Right/Left click animation. But what else? . . . Block destruction animation! I suggest the following modification to the setblock command syntax: 

• /setblock <pos> <block> [destroy|keep|replace|strict] <time of breaking animation in ticks or seconds>
• /setblock ~ ~ ~ minecraft:air destroy 10s

This command will start a 10-second block breaking animation and then break the block and drop it as an item.

I think this is a very good and necessary modification for mapmakers. I hope you agree with my idea and don't send it to the trash.

Thanks SteveHow1ett