IMHO, in retrospect, the failure gradient of early LLMs is underappreciated in driving adoption.
Windows 95 failure: blue screen with inscrutable error code. Everyone noticed that.
LLM failure: run-around non-answer (user shrugs and tries again) or confident and plausible incorrect answer (user doesn't recognize this without research).
Essentially, the ways in which LLMs didn't work were the most hidden and hardest to discover failure mode.
Which was perfectly tuned for the "I'm going to try this thing for 5 minutes and be amazed" first impression.
Which allowed subsequent generations to backfill the capability gaps.
Tl;dr - We shouldn't underappreciate quiet-failing as a product adoption driver.