Ironically the very thing you're arguing for is the same thing as

(you use my property to sell the app therefore I want compensated for it) Taking it a stage further, it's like saying, here use my property, but don't pay me anything just pay the neighbour down the street that I've no relationship with.
This cluster**k is exactly why the app store was introduced in the first place. If you can remember back to pre-iPhone all mobiles/carriers had their own respective stores that didn't do so well as was locked to regions & the apps were garbage with no recourse when things went wrong - would you rather have a small bit of a big pie or a bit bit of a small pie? 'cause that's what it was like.
I don't want developers spamming me with emails so that but will be getting declined.
I haven't read the ins & outs of it, but of course

could be missing a trick, they could use the email comms using their iCloud email aliases, that'd keep the developers happy &

as there's still lock-in to their service, but again folk would probably still moan about that I guess.
I really really hope we don't return to the world of sideloading apps as that's just a bag of hurt waiting to happen all over again.
When the app store started it was deemed that the developer 30% cut on the balance of probability was a fair one as retail software was way less & the geographical reach was nowhere near what we have today.