system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU / The Wolverine Movie] - question about adamantium claws and the katana fights

So I was watching the most recent The Wolverine movie where Logan goes to Japan to help out ~~Harada~~ Yashida ... one thing I can't understand in the sword fights in various scenes, how is it that Logan's adamantium laced claws are NOT slicing through the swords like a hot knife through warm butter?

If I was not mistaken, this was the quality of the adamantium laced claws - that they slice through ANYTHING like ... well .. a hot knife through butter ...

Was it that the movies got it wrong? Surely the katanas at Yashida's residence used by Shingen and Kenuichio aren't laced with adamantium. I definitely remember Logan's claws doing that in the first and second X-Men movies.

Any explanations? Was it a goofup in the portrayal of adamantium's capabilities in this movie?
gpt
He wouldn't want to slice the blades in half as the lower half would carry on moving and open his guts. 

It's a lot safer for him to block the blade completely by not using the razor edge of his claws.