Steve Jobs has said a lot of things. Remember that he initially did not think the App Store needed to exist and that web apps would suffice.
Also, in the very least, he meant for the App Store to pay for itself and not be subsidised via hardware sales, contrary to what some people here feel Apple ought to do.
The thing with App Store revenue is that it’s pretty “too heavy”. The majority of apps earn no money for apple because they are free and the bulk of revenue is derived mainly from freemium games like fortnite, and I am not really concerned about how much or how little these IAP-riddled games are charged, not least because I feel they are a stain on the App Store to begin with.
It’s not impossible for the App Store to be run as break even but then, why should Apple, and how would any sort of legislation even begin to be crafted in the first place?
Anyways, if you want something to apply to Apple, then it should apply equally to all. Right now, all these suggestions seem borne primarily out of spite, like they are there solely to punish Apple for the crime of being too successful at what they are doing. Quite a 180 from last decade when people thought Apple would lose to android.