No it isn’t, it’s done like that because it’s not meant to be used that way and it’s meant to be lighter and slimmer. His solution didn’t work, and while it probably could, why would Apple add this when it adds points of failure to a device that doesn’t need it

The lack of cooling in the air is definitely something that should be fixed

That's not really the point of the MacBook Air. The Air lineup has always been about doing quick, bursty tasks effectively (email, web browsing, word documents etc). Apple Silicon chips have gotten to the point where fans are not necessary to achieve this objective, so Apple skips a fan in the Air models to help better differentiate the various MacBook models.

The 14in MacBook Pro with M3 chip is essentially just a high-end MacBook Air, as it carries most of the same limitations minus cooling.

The M1 Air is an incredible value. And it’s got no need for a fan. I’d much rather a completely silent machine.