Your own quote shows that this tweet is a fringe attack against a theme in feminism - it is a counter against 'choice feminism'. It's clearly a statement by a edge concept against a central theme.
>If "most feminists" believe choice is the key freedom, they better speak out or risk being drowned out.
Indeed, also in your link is the quote (in only the second paragraph): "Read almost any online article about feminism and the comments will soon devolve into a debate about choice.". It seems that the feminists are already doing what you're demanding, but you're... ahem... choosing to ignore them to make your point.
Anyway, if you read the article, it says the same thing that your quoted section does - that choice itself isn't bad, but that it should stop being used as the 'ultimate arbiter', including examples where the author considers 'but it's her choice' to be undermining feminism. She doesn't say 'choice' is bad, but her argument is to stop having 'choice' used as a trump card.