I can never judge Earthbound without bias or nostalgia. It came out when the summer that I was 13 and I lived in suburbia, I had tired of every single RPG being Swords and Dragons. My typical summer day was hopping on my bike, finding the local kids and playing in the woods or video games until our parents got home from work. It holds a special place, me and my friends were that crew.
The first thing that I noticed when I turned it on and played the intro was Holy crap, was this made in Mario Paint? the overworld graphics to me really didnt wow me. The music was alright and the battles reminded me of Dragon Warrior, Im alright with this. I explored Onett, grinded levels and went on my way. Once you get Paula the world really opens up, please at least play until there.
That being said, some nitpicking of the critique. Enemies actively flee from you after you clear out a dungeon. Battles are EASILY avoided, if you really dont want to fight (Youll pay for this eventually) you can always scroll the screen back and hope for a better situation. Status effects like the mushroom are unique, and part of the charm. Homesickness blows though, I understand why its there, but when youre fighting a boss and Ness thinks about his mom and you die. Brutal.
The only other thing that I can think of is that you played Mother 3 before 2/EB. Mother 3 is so much more refined, I can see why youd think Earthbound is barebones, or just not worth your time.
TLDR: Earthbound isnt perfect, but I have the softest spot in my heart for it.