Wonderful mention of the context! You are absolutely right! If the use of the Text was misinterpreted, then apologies. There was no intent to infer praise or command or derision or anything else. It was only to give an introduction into how to study the Bible, especially when there is a lack of understanding, because remember, rebuke is given as loving instruction for the purpose of edification.

And also on Lucifer:

How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations! Isaiah 14:12

You are absolutely right about the description of the king of Babylon, but his description was given as being in the image of Satan. Just as in Ezekiel and describing the prince of Tyre and the king of Tyre (Ezekiel 28), one literal and one spiritual describing the Satanic mindset that ruled over Tyre just as it did over Babylon, here too Isaiah, who was a contemporary of Ezekiel, is describing the spiritual mindset of the king of Babylon as that belonging to Satan. It is sort of a double application, physical and spiritual, in one Verse. Good catch!

And his tail drew the third part of the stars of heaven, and did cast them to the earth: and the dragon stood before the woman which was ready to be delivered, for to devour her child as soon as it was born. Revelation 12:4

Because the falling away from heaven, or the being cast away from heaven, is too a literal description of Satan.

I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star. Revelation 22:16

And in both the Hebrew and the Greek the same word is used for "morning". So the "son of the morning" is too a description of Satan when he was under the epithet of Lucifer, as the Morning Star is Jesus.

For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him: Colossians 1:16

For the angels are too described as "morning stars":

When the morning stars sang together, and all the sons of God shouted for joy? Job 38:7

Wonderful catches! Thank you for adding clarification and allowing the study to grow! How beautiful!