I would understand if the parent comment had noted everything in your second and third paragraphs about the strong partnership between product teams and Mark Zuckerberg's reference on the sign up page. That stuff seems incredibly relevant in this context.
If the intention was to paint the companies as working closely together, talk about how they actually work closely together, not about how the same VC firms at two different points in time happened to give them some money.
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I would understand if the parent comment had noted everything in your second and third paragraphs about the strong partnership between product teams and Mark Zuckerberg's reference on the sign up page. That stuff seems incredibly relevant in this context.
If the intention was to paint the companies as working closely together, talk about how they actually work closely together, not about how the same VC firms at two different points in time happened to give them some money.