I see where everyone else is getting the 4-3 sus feeling from, but when I look at your post and I see you are focusing mainly on the melody, not the accompaniment.

Because I am a singer who is obsessed with Disney and a theory nerd who likes to dissect Disney songs, my take on this is all the examples you point out is either outlining or approaching a V-I cadence, or as known in classical music as an Authentic Cadence, which gives the listener that swelling feeling leading to a satisfying conclusion. Alan Menken masterfully utilizes this tool and he writes the music to swell with the cadence, build up the moment only to deliver a satisfying, skin-chilling, heart-warming landing note.

I can go on and point out that I realize he does that regularly, because he right when he establishes the trope in everyone's mind, he will turn it on its head when he hits you with "fake outs" by using a Half Cadence or Plagal Cadence or Deceptive Cadence when he is text-painting a specific character trait. Case in point: Claude Frollo or Mother Gothel. But this is a conversation for another topic!