He didn't even know he had a son or daughter, so how's he supposed to sense them? It's possible he sensed something with Leia, but didn't know what it was. As for Luke and Obi-Wan it could easily be argued that Ben was cloaking them in the force. Especially since Vader did begin to sense Kenobi's presence, but only after he had finished disabling the tractor beam and was trying to lure Vader away from Luke and Leia escaping.

Nah, just poor engineering by the Nazis.

They should not have made its one weakness shaped like and approximately the size of a womp rat.

Right, and Vader's religion is wrong because the Sith are a cancer on the Force, which is why it guides Luke in to both redeeming Vader and Rey in destroying the Sith for good.

The Force didn't intend for an upheaval, Palpatine is the upheaval. The Sith can steal power from the Force in the same way a tumor steals resources from the body.

The Jedi aren't completely right either, but their nature was symbiotic per Lucas, no matter what Reddit shitposting has to say on the topic.

he is as strong as he needs to be for a compelling story. not sure who said something like that (maybe stan lee?). i dont know a single person who watched the original trilogy and did not see vader as a terrifying force.

yes, he did not show as much raw power as in some later media. but he left such an impression, that he still is one of the favourite antagonists now. in videogames, usually the player is served a power fantasy. so the antagonists also needs to up his power by a significant amount. otherwise he woud just be another goon.

I thought the same thing. There's such a huge contrast between the boarding scenes linking up Rogue One and episode 4 in the original trilogy.

My personal favourite show of his strength with the force is from [...]

There was also a scene in the Obi Wan Kenobi series that I really liked and is very similar to your example: [link]