He wasn't a healthcare CEO, he was a health insurance CEO. Nobody hates doctors for being doctors or even hospital administrators for administrating. It's like how nobody says "fuck the firemen" while they write songs disparaging cops.
This is the system progressives created. Maybe universal healthcare would be great, and at very least it'd be better than the system we have now. But that's not what they gave us in reality rather than what they promise for the future.
Wage and price controls lead to companies offering much more than catastrophic care in insurance packages and linking healthcare and employment. Medicare/caid more or less cemented that bastardization of insurance, it's metamorphosis from protection from catastrophic loss to prepayment for healthcare expenses broadly. Obamacare mandated such individual coverage, employers providing such coverage, and expanding what must be covered, affecting the structure, the exits, and the price... all because Obama wanted to bail out insurance companies and lock people into their product as he let the insurance companies write his signature accomplishment for their benefit.
We spend more than any other nation on healthcare, while having less access and assurance of coverage, and it's entirely due to progressive-lead reforms that divorced consumers from costs with complicated policies that lack basic transparency or any but loose connection to market forces while still enriching corporations acting as middlemen between patients and care that profit by denying it. It's simultaneously worse than a free market in healthcare and worse than universal healthcare by combining the very worst features of both.
If you're progressive and wanna laugh at a man's murder because he's a part of they system your ideology created, then you should laugh at the death of FDR, Nixon (he was a Republican, but a progressive one contributing to the problem with progressive policies), LBJ, and Obama as well as all the politicians who supported them and voted for their healthcare reforms.
Like... forget about the ghoulishness of cheering a man's death because of his job for a moment, and focus on consistency. If you cheered for Obamacare, you're sorta out of the running for laughing at this man's death without being a hypocrite.