Osborne was the first commercially sold portable computer and had huge flaws. The Osborne II had twice the memory and the display was more than twice as large. That isn't the case with MBA. Consumers no longer expect technological leaps like in 1985. Expectations have changed entirely and people look forward to better performance and features at the same price.
Today, the Osborne effect happens if the newer product is substantially better at the same or lower price. That isn't the case with M2 MBA since it starts at $1,199. Those are two different markets, like iPhone 14 and iPhone 14 Pro.
Lenovo, Dell, HP, and the entire PC industry sells 8th Gen Intel Core products along 12th Gen systems. Nobody calls that Osborne because prices differ and expectations have changed.