From a manufacturing standpoint, whether you're making bicycles or hubcaps, all things being equal a design that requires tighter tolerances is less desirable. When tighter tolerances deliver better function, it's a business tradeoff.

From a marketing standpoint, tighter tolerances have become associated with higher quality, even though they can result in more failures and higher maintenance cost. For the company, this can mean higher warranty cost and damage to the brand image.

Assuming press fit actually does require tighter manufacturing tolerances - I simply don't know if this is true - it would be surprising manufacturers didn't know that beforehand.

In an industry where product differentiation is important yet hard to come by, questionable innovations are inevitable.