If the soil surface has gotten really dry, spritzing before watering can be a way to prep the soil to start absorbing water again.
I do a lot of spritzing for hanging plants over winter. Add too much and they drip on the floor. Putting a plate or bowl under there catches any drips, but the splashing makes that a last-resort safety feature for me.
It can be tricky to water after repotting. If a gush of water is applied, the soil gets instantly compacted and washes out of the pot. Spritzing the first few times, if you have the patience, can get the particles locked in place so when you do water, the bits don't move. As said, this is such a small amount of water per trigger pull. You'll need to sit or stand there squeezing the trigger a bunch of times until a significant amount of water has been applied.
Agree from the new pic of it in the past, it's a PL, not A. modestum.
If a dead leaf or stalk is hindering your enjoyment, definitely remove it. But otherwise, I don't think the plant cares, assuming it's not from an anomaly like bacteria or fungus. My theory is somewhat the other way, that plants absorb the moisture and whatever else from the dying leaf and then to the plant, it's like a hair that falls off of a human head, or an eyelash, it's just not part of the person anymore.
