I'm not quite sure what position and tone the parent comment is aiming for. Is this an example of the GP's concern that you are agreeing with? Or an example of why you think graphic design really is overrated because here's a company with millions in funding that doesn't care about design?

You're welcome to hire an agency to help with things like colors, fonts, illustrations, and to audit our component library.

I suspect someone like the GP could help with the other 90% of what graphic design is about, too, and the attitude implied here (whether it's your or the company's, again I'm not sure) is probably exactly what the GP is disappointed with.