Depends on what you mean by "primitive". 45,000 years ago, humans were every bit as intelligent as they are today. They may not have had agriculture or other technological advances, but mentally, they were sophisticated.
Look at it this way... using only stuff they found on the ground, they were able to successfully and repeatably hunt animals that weighed 5-8 tons, were faster than humans, had multiple natural weapons that could easily kill a human, and were both herd-oriented and highly intelligent by herbivore standards. Do you think you could do that? That doesn't sound primitive to me. That sounds really sophisticated.
Look at it this way... using only stuff they found on the ground, they were able to successfully and repeatably hunt animals that weighed 5-8 tons, were faster than humans, had multiple natural weapons that could easily kill a human, and were both herd-oriented and highly intelligent by herbivore standards. Do you think you could do that? That doesn't sound primitive to me. That sounds really sophisticated.