It's semantics, which means it doesn't matter. If a tomato had feelings, and referring to it as a vegetable hurt those feelings, then you'd be wrong to call it a vegetable, even indirectly.
If a tweet (or similar) makes a statement of fact, either mark it as "satire" in the body or provide the original source link backing up the statement (see rule 6)
It's semantics, which means it doesn't matter. If a tomato had feelings, and referring to it as a vegetable hurt those feelings, then you'd be wrong to call it a vegetable, even indirectly.