If the soil is wet long after the last watering, that is a sign the roots aren’t working well. Roots can get fungal infections when wet too long and rot away.

What was the condition of the root ball when you repotted? A healthy palm in the same pot for years would have a dense fibrous root ball, completely enclosing the soil. If it was a soft, rotted mass, then the roots were rotting.

You did the right thing I think. Hopefully the new soil is fluffy and aerated. Did you wash off the leaves too? Palms in the house can get very dusty and the leaves need to be sprayed off a couple times a year or so. They breathe through the stomata and dust can lead to reduced vigor.

They are notorious for sudden spider mite infestations - damage looks similar to your photo. Do you see any webbing or very tiny creepy crawlies?

From what little I know, they might require less watering and more soil aeration than most plants, similar to succulents which can draw enough moisture from the air, so hopefully you didnt pack the dirt too much.

Don't fuss too much over it, it's far too weak to try division propogation so it might be cooked. If overwatering caused the problem then the best thing you can do is leave it alone in full sunlight for a while.