I'm not so sure about that. Sure, it didn't impact THE account or crash the stock of an unaffiliated company, but that proverbial bullet flew close and I bet that quite a few powerful people felt the wind. The "harmless" nature might spare the hackers a bit, but it definitely won't spare Twitter.
Yeah, that would be my hunch too. To gather potentially damaging messages from Obama, et al, and damage Twitter. Interesting that the Russian Foreign Ministry's Twitter was hacked last week. Maybe related (a test or to throw off the scent?): https://www.forbes.com/sites/daveywinder/2020/07/04/hackers-...
It's an interesting coincidence that the "digital guru" Brad Parscale was demoted and another guy promoted at the end of the day. Hopefully it's not related, but the list of Twitter accounts compromised would be an oppo researchers dream (and there could be more accounts compromised that weren't publicly flagged).
Hell, even just hacking Trump to do it would probably trigger a federal investigation. I doubt this current situation will.