[madeofpalk]

This might be true for writing an essay. But plenty of collaborative text-editing happens on a much smaller/informal/ad hoc scale.

My personal experience of using Google Docs/Sheets strongly disagrees with you.

[layer8]

Asynchronous editing on a centralized platform only infrequently causes actual conflicts in practice, like multiple users editing the same sentence at the same time. Either the editing is actually sequential in time, or independent parts of the document are being edited. With asynchronous decentralized/offline editing, conflicts become more likely.