It's much better than posting the content normally and having to feel somewhat like a loser when nobody even likes/comments on it.
On Instagram I have like 6 photos uploaded the normal way. For years I've only used the "stories" system to engage with friends. It's far more personal. Don't knock it too quickly, you may find it's a step in the right direction.
I don't want it at the top of Google search as a marketing apparatus, though.
Join any big Discord gaming group and I guarantee you'll see more people chatting via text than using the audio functionality.
I agree that the text is the major activity going on at any given moment because text remains a good asynchronous repository, but if they hadn't basically integrated mumble/teamspeak to slack I'm not sure the glitter would have been enough to stick, because gamers (and some groups of discussions) definitely do rely on those voice lobbies when actually being present.
Snapchat and Vine started it, and now TikTok, Instagram, and Facebook are all neck-deep in it. Every single one is dominated by this content in 2020, with perhaps the only area where text is still a main thing being Discord (although voice-chat is the attractive bit for gamers) & the streaming world (Twitch comments, youtube comments, niche Twitter communities).
Whether we like it or not that's where the users are, and for Google that means it's where the ads and indexing should be.