This attitude typically isn't about the "best tool for the job", i.e. do I really need DL or are decision trees or some regression sufficient for what I need to

This attitude typically isn't about the "best tool for the job", i.e. do I really need DL or are decision trees or some regression sufficient for what I need to achieve? But about the persistent "you don't need DL at all!" stance. In a way I understand it, for example if somebody finished their computer vision PhD before Deep Learning and don't want to admit their knowledge is now next to useless for most industry cases...