Not odd at all. Greenpeace attacks Apple for using the same environmentally-unfriendly materials that everyone else uses... because Apple is popular. The subsidy-for-Tesla narrative is driven by folks who either don't like the government, don't think climate change exists, or don't like the hype around Elon/Tesla.
There are just as many people who point Tesla subsidy as proof that "the market" does not produce good outcomes by itself, and that government subsidy was vital for all solar power and EV vehicles.
I think the reason they are necessary for solar and EV is because non-solar and non-ev have had so many subsidies over the years that it is difficult to compete with them.