Plus style, plus, certainly in the case of the Odyssey, rhythm (https://en.wikipedia.org/wiki/Metre_(poetry) ). https://en.wikipedia.org/wiki/Odyssey#Narrative_and_language:
“The epic has 12109 lines composed in dactylic hexameter, sometimes called Homeric hexameter—a metre with six metrical feet. The form of hexameter is catalectic, meaning that it lacks an expected syllable in the last foot. Each line has between twelve and seventeen syllables and generally forms a grammatically complete sentence.”
The Emily Wilson translation begins with an extensive introduction covering the things you have to balance when doing a translation, translation choices, some faults or misleading choices she believes some other translations have made, why she made the choices she did and her reasoning and goals behind them, etc. It is well worth the read to help understand that there is no one way to be "faithful" to the original.
I've read Fagles and Wilson, so I am certainly no scholar on the subject.
I think it's to their credit they frame it in terms of preference and enjoyment because that is more accurate to what they are doing.