That was a different era of consumer behavior. Consumers are hyper targeted with personalized organic and paid messages. The algorithmic media ecosystem mitigates or counters complex product offerings. For example, my YouTube feed displays Apple Pro devices reviews over other lines like iPad basic. Also, purchase power acts as a natural filter.
The customer base is also so much bigger. Just before the the iMac was introduced, they were selling under half a million Macs per quarter. And that was divided up among a bunch of different models. That makes it much harder to manage production and inventory, and your development costs get spread across fewer units. With 10x more Mac sales and 100x more iPhone sales, there’s more room for variety.