Most CS grads coming onto the engineer market now will have ML exposure through their chosen college courses. As this wave of knowledge makes its way through the industry, the value of ML specialist knowledge will decline, especially as off-the-shelf pre-trained models improve. Very few companies then will be able to justify the luxury of a dedicated in-house data science/ML engineering team. In other words, most software engineers will be ML engineers, in the same way most software engineers today are Docker/cloud proficient engineers.