I like your point but I think it's a little too harsh to call it premature. Sometimes you're forced into that position and it makes sense to do so. But it's a good take if you're busying yourself with optimizations of old tech you'll never innovate or be a leader. It's still a good preoccupation in many constrained situations.

The massive counter to my point is Sergey brin inventing cloud computing from off the shelf Components because they couldn’t afford standard mainframe hardware of the time.