It's not about freedom of speech, it's about self entitlement caused by too much freedom.
If the artist does or doesn't have a problem with it, that's for them to decide. Not you, but the Creator of the Artwork. If they have a problem with it, then they'll say it.
If you don't like shipping, don't engage with it. Simple as!
I'd prefer to erase it, simple as that. The artist doesn't draw yuri, doesn't talk about it either and a bunch of sticky people come to talk about paranoid lesbian pairings, don't you see anything wrong with that? Don't you see how endorsing this is just fomenting judging based on stereotypes or twisted first impressions even AFTER said character is developed? It's Navia all over again where people keep going at her being a lesbian and mischaracterizing her to such extreme points they can't even describe her properly without thinking she's a perverted "bad kitten" or a complete frivolous airhead. It's not about freedom of speech, it's about self entitlement caused by too much freedom.