Businesses have to survive in a competitive market, I get it, you don't have to apologize for it and it's not greed, it's just how the market works.
That said, you did not work with OSI or the FSF before changing the license. And your company is not the only contributor to MongoDB, you have third party contributors as well, who did not have a say in it, because of the copyright attribution that you require.
In other words, you did not collaborate with OSI or the FSF and you screwed your contributors.
It's good that you're now waiting on feedback from OSI, but the damage to the FOSS ecosystem was already done.
That said, you did not work with OSI or the FSF before changing the license. And your company is not the only contributor to MongoDB, you have third party contributors as well, who did not have a say in it, because of the copyright attribution that you require.
In other words, you did not collaborate with OSI or the FSF and you screwed your contributors.
It's good that you're now waiting on feedback from OSI, but the damage to the FOSS ecosystem was already done.