That's a very general statement which hasn't been customized at all to the current scenario. So really there's no way for me to respond, but I'll try.

As I said, swiping up actually feels easier to me on a large screen than swiping left or right. And putting notifications on the lock screen is a critical feature in my opinion, something Android has desperately needed out of the box for a while now. I use a custom lock screen just for that feature because it's so useful.

The notifications are a great addition in stock usefulness. You could always add that functionality through 3rd party lock screens but it's nice to see it baked right in.

It's the swiping that I'm specifically disliking. Every time I swipe to the right it opens up the phone app. Probably there are many users who have formed a really strong habit of swiping a certain way to unlock their Android phone. I would bet on that direction being left-to-right.

Do you know if it's possible to change the way the lock screen handles swiping in some settings page somewhere?