I'm a bit confused about ChainPad. Why use a blockchain here? Wouldn't treedoc be enormously better? I confess to being a bit uninformed about how chainpad res

I'm a bit confused about ChainPad. Why use a blockchain here? Wouldn't treedoc be enormously better? I confess to being a bit uninformed about how chainpad resolves editing being done in the exact same area by multiple people all at once. Treedoc handles this elegantly and with good performance. Does ChainPad? I'd test myself, but since I lack friends it's difficult to do correctly.