"first paragraph of the whitepaper" - you mean the abstract? I don't get what you're saying "you can already do inheritance with script" - no I can't because I don't code, but if I could I would still wait for a major cryptocurrency like Bitcoin or doggie coin to have it on chain instead of thinking it needs an ecosystem split

Yes. Read it again to understand the problem bitcoin is the solution for. This is like saying you can't use WiFi or email when it first came out. Weak argument.