I think "making history" has just become one of those phrases media uses all the time now. Kind of like how any dispute is now "slamming" someone, apparently. Or how anyone you think is wrong is "unhinged".
I'm guessing this would be more historical to LGBT people. If you're a member of a group, I think you're more likely to be excited to hear another member of that group being appointed to office.
I feel like we're abusing "historical" here.
Is this something of particular note that's going to be taught to future generations?
Does the African American community know which president was the first to nominate twelve judges of color? Do women know which president was the first to nominate twelve women?
This is a good thing, but like, it's a good fun fact at best. I think saying it's "making history" is overstating. It'd be like saying the person who has the Guinness World Record for longest handstand is "making history."
It's not historical to this queer, I dont care about someones sexual orientation, I care that they are able to do their job. Being LGBTQ+ is not a qualification for any job.