Well, that chart was about, all the times in past when many big authorities talked bad about BTC and then BTC turn out to be a charm instead of failure. The thing is BTC really disappoints many people who believed in its failure. The real link to that source is here
https://buybitcoinworldwide.com/bitcoin-is-dead/Bitcoin has died not once but twice but 474 times but resurrected 475 times. This cycle of Bitcoin life and death will continue to cycle like this for as long as Bitcoin exists in the world.
When a group of institutions, individuals or an organized group make a negative comment on Bitcoin, the Bitcoin market has a huge impact, resulting in a massive drop in the market price of Bitcoin. This is one of the tricks for investing that can't be easily understood by stupid or uninformed investors.
When bitcoin died 474 times, the most intelligent investors invested in bitcoin and the stupidest and most ignorant sold their bitcoins 474 times.