Using your analogy, which is quite frankly stupid. Epic is currently more of a KIA to Steams VW/BMW/MERC, it's lacking some of the build quality and refinements but the basics are there and it is getting better with each release.
I don't believe anyone's said it's actually competing with Steam 2004, I know I certainly didn't. What people are saying is that it takes time, lessons learnt and adaptability to get to the level that Steam currently is. Steam wasn't steam 2019 in 2004 either so to suggest Epic should come straight in at the top is mind-boggling and shows a complete lack of understanding about product development.
Whats the issue with waiting until it is in a better state before releasing it?
Did the ps4 and xbox1 release feature incomplete just because they later to market?
At the very least these features should exist.
screenshots
achievements
cloud saves
user reviews
automatic refunds
forums