This is typical Silicon Valley hype taking credit for everything. There were many EV manufacturers around the same time as Tesla (ex. Nissan, BYD). Even earlier, the supply chain for lithium batteries got momentum due to electric buses and hybrid vehicle manufactures but no one gives them credit, only Tesla for some reason. Currently, Tesla is only a small chunk of the entire EV and battery market but still gets all the credit.
You can see this in the Tesla Semi or the Tesla battery pack announcement. Companies have been mass producing them 4 years before and are already being used in production today. However, being B2B, these products were largely low key. But somehow Tesla gets all the credit these and "moving the industry forward". Chinese and Korean battery manufactures have also been expanding production like crazy and account for the vast majority of production but only the GigaFactory gets any mention which cause some people think Tesla alone is responsible for the decreasing price of batteries.
Major auto manufactures are working on EV mainly due to government policy. I agree private companies seeing traction selling EVs is a large impetus for the new government policies, but to only credit Tesla is over-exagerating it's contributions. How much does Tesla influence Chinese policy when 95% of Chinese EVs are made by domestic brands?