Details details. 

Seems like some geopolitical theater at play. 
I haven’t followed the specifics closely but I’d guess they came to a back channel deal with Maduro and no forcible abduction was necessary (correct me if I’m wrong about that, and more details have come out cause nostr:nprofile1qqsy67zzq5tc9cxnl6crf52s4hptdwhyaca5j7r8jwll535tdadedvcpzpmhxue69uhkummnw3ezuamfdejszxrhwden5te0wfjkccte9eekummjwsh8xmmrd9skczwaek0  is my only source of mainstream news and I haven’t seen his feed from today) 

As a result:
1. US can save face on basically handing over valuable assets to BRICS at a discount since everything from Venezuela was sanctioned 
2. They can ease those sanctions with the “new” government cause the US realized they need the rare earths for missiles/defense, noble metals and the oil as a nice bonus to keep prices/inflation low (and hurt Russian coffers with sub $55/barrel oil and keep that previously discounted oil out of China’s hands. They were getting 85% of it beforehand supposedly)
3. It’s a power projection and fear tactic for the rest of the western hemisphere countries- signaling the US is pulling the eye of Sauron back to its own sphere of influence (er control)
4. Maduro gets off easy in a kangaroo court and lives out his days in ease somewhere 
5. That big offshore oil find in disputed waters with Guyana probably had an impact on the timing
6. Seizure of Gold, Silver and Bitcoin would be bonuses 

Overall the rare earths and keeping the other natural resources out of the hands of China, Russia and Iran (maybe) were the biggest drivers. 
Elections and fake leaders are details that will be sorted down the line after business is done on resources 

I pray things improve for the Venezuelan people somehow, but they will probably be an afterthought