The difference is, that with Vim script it will either happen unexpectedly or unexplicably, while in Elisp it will/might happen later, but will be in the realm of understandable things.
Distributed function call isn't that simple. You will soon have various issues like authentication, authorization, compatibility between versions, throttling, retry (e.g. transient error), and so on :-/ The list is so long we could probably write a book about these
I think Microsoft was even better, at least on the number of users that recognized the blue W for making documents the e icon to get online, etc. That's how my mom did it, but she would have no idea what Ps, Il, Ae, would mean
I paid ~100 dollars to buy songs in Taiko no Tatsujin in iOS 4 via In-App Purchase. But around 2 years later they axed the game and I have no way to download it again. First I can still recover it via iTunes backup. But later when iOS 7 is published, the backup just couldn't run anymore. It was just gone. I should have owned them if I pay that amount of money :-/ It was a very fun game.
There's people who pay tens of thousands of dollars on Genshin Impact and the game will be removed from the store at some point too and the things they spent money on will be gone. You don't own things from the store :\
I had many 32-bits games in macOS but they were all axed, including big titles like Diablo 2 (not the resurrected one), Warcraft 3, and a lot of indie games. This made me realize why no sensible game companies would develop in Apple platforms, unless the games generate revenue continuously (which are mostly pay-to-win games)
I still don't know how to create a native app so inefficient that, it needs to take more than 500 milliseconds to open a directory