Well, this is a normal issue with traditional scissor switches, but it probably only affects a tiny number of people.
Traditional scissors are slightly flexible, but that allows them to have some play, which also makes them less likely to get jammed. The tradeoff is when you allow some play, you can get missed keystrokes as the result of glancing strikes and this is probably the reason why Apple increased the size of the keycaps is to reduce the likelihood of you hitting only the corner and failing to register a keypress.
The butterfly is a more rigid variant of the scissor switch. The rigidity does two things. It gives it a super clicky feed and it makes it so that even glancing keypresses will get registered. Try pressing the very tip of a cornern of a butterfly keyboard and it'll register. The tradeoff of such a rigid mechanism is that it can get jammed with small debrit. BTW, it's not the switch that gets jammed. It's the scaffold. The switch cannot be jammed. It's sealed.
Anyway, I wouldn't freak out. You'll probably adapt with time to strike the cursor keys more directly or you can use a remapping program to give yourself "additional" arrow keys. I do this to turn the IJKL keys under my right hand into an alterate arrow cluster whenever I have the Control key pressed down. This way, I don't have to move my hand to find the arrow cluster.
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I have to try really hard to do this and in real world use there is no way this is an actual issue.
I think you'll find a lot of people who'll disagree. It depends on a lot of things. Typing mechanics are a factor for sure, but some people are more likely than others to make glacing strikes. Your posture, the ergonomics of your workstation, and the size of your hands are just some other factors that can determine if this happens to you.
I'd doubt that this will be a huge issue in the wild, but it's definitely an actual issue for a small number of people.