So lets take a step back. There's two sides to this encounter. It is common for Americans, when they feel like they're in danger, to approach situations with a gun drawn.
Police, knowing that other Americans will approach them with guns drawn (since criminals see Police as a threat), will also approach with guns drawn.
And guess what? The gun advocate will point out that everyone acted as an adult in this situation. No gunfire was exchanged. The heart attack was unfortunate, but this is actually one of the better situations.
Compare / Contrast instead with say: Breonna Taylor. The Police begin to knock down the door, someone gets confused and shoots at them. The Police shoot back killing Breonna Taylor.
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You can't deny that the job that Police do and put themselves in means that Police are expected to get shot at. Changing this expectation will require more than just changing how Police operate, it also means changing America's culture to not have so many freaking guns.
I also find it ridiculous that a country that says it is OK to defend your house with gun, also says it is OK for police to create situation in which people think they are attacked by violent strangers - where those strangers are cops.
Seems like treating every encounter as struggle for dominance instead puts you all in more danger.