They do and always did. But open source was originally not about that, but about building something cool and letting others build on that. And, crucially, about GPL preventing large companies from extinguishing your work "because copyright". I remember Bill Gates calling GPL a spreading virus that tech world has to fight.
Sometime along this path monetizing open source became a thing. Now it is apparently becoming less lucrative. OK. That's the nature of changes, but IMO it does not kill open source. It might eventually make it even better, as commercial open source has become too widespread and money corrupts. My 2c.
