I mean being fair, for the Death Star chase it would be a bit of a determent to kill Luke and company, since Leia implies that they were let go because they were tracking the Falcon, Tarkin then later confirms this. The Empire was after all trying to find the Rebel base, killing them all with the Death Star would be far more beneficial because it would take out the entire Alliance High Command. Now it's kind of a question of 'when' this exactly comes about, but it could possibly be after the garbage compactor given there is enough time between then and before they are spotted again.

With Empire Strikes back, I don't recall the Troops arriving until after Han and company were already aboard the Falcon and trying to get it going, by that point the Troopers were setting up an E-web gun to destroy it before Han was able to blast it with the Falcon's under turret.

With regards to Endor, being fair the Ewoks had a large advantage in that they knew the terrain better than the Imperials did, their small size would make them hard to hit. We also never really got a full scale of the battle because we kept switching between 2 others that were going on at the same time. The ROTJ script takes note that the battle actually turned around when Chewie hijacked the AT-ST, so take that for what you will. I think it's also forgotten that there was a whole team of Rebel Specforce Troopers as well in that battle. Though that's not to say it's not bad for the Stormtroopers, though they didn't really go for a fight to begin with and I'm sure weren't expecting to fight the natives.

Tbh I think a lot of people exaggerate on the incompetence of the Stormtroopers based on a few scenes, when really there are other scenes just as well showing them being good. Are they perfect? No of course not, but are they braindead? No, even the many, many, MANY authors who have written for SW seem to know that they are competent.

The guy who went to Skywalker Ranch to write the Visual Guide for EPs 4-6, taking everything from props to Lucasfilm consultants, wrote that Stormtroopers are very capable, so that clearly came from a reliable source(which imo is the next best thing, next to the movies themselves). Then you have other authors doing the same.

Now obviously yeah, some authors write differently. All authors will have their own different views on things. But many have also written them as being formidable.

Of course the jokes/memes, don't really do any favors in helping to show the Stormtroopers as being competent either and many fans lean into that, rather than actually look at the material itself. So there's this more leaning into one direction, rather than having it balance out.

Stormtroopers keep missing the point

It's called plot armor. Stormtroopers are good shots when it's convenient for them to be, but when our main characters are involved, suddenly they can't seem to hit anyone.

Exaclty

Though I agree with your post, I think that it is plot armor like WizardWarrior1 said, if storm troopers were even 90% more accurate with shooting, the original trilogy would finish in the middle of ESB.

True

I only made this so people would be mindful of making "Stormtroopers are such horrible shots and are terrible cause they couldn't hit main characters." arguments.

Tbh that argument only works regarding the movies and even then we see Stormtroopers give a fight to the main characters, especially on Endor. Going beyond the movies, there’s plenty of instances where Stormtroopers actually beat the main characters or capture them.

Can’t really recall any Disney Canon instances but in the old EU there’s a few.