Well, yes... but...
Avg Capital in early game is on a 3F tile. If you have a 4F resource and another 3F tile, you have 10 food, with a 6F surplus. Barre's bonus gives you one extra food, 7F. That's 16% faster growth here. Typically, it's about this time you start using 2F tiles to maintain growth, and those tiles may not be great. 2F, 1E on a river, or some farmed plains at 2F 1P.
You could choose to work a 1F tile instead, but there aren't ANY 1F 2P non-resource tiles. Those used to be called "forests", but alien forests evidently just suck. The alternative to the plains farm is perhaps a plains generator, at 1F, 1P, 2E, but 2E isn't anything spectacular. What you'd really like is a mine, but you've only got ONE extra food from Barre's bonus, so that 0F 3P mine will mean slower growth.