Yes, on a daily basis, for info feeds (I use it to keep an eye on change or commit log feeds, vendor end-of-life notice feeds, etc) it's still a very good solution.
Generating an RSS feed is very simple, it's just an XML structure, not sure you even need a package for that. Just construct the correct array structure, call Format::to_xml() and you're almost done?
When Googling RSS Fuel PHP Package I noticed a few were out there. Just figured why re-invent the wheel. I have not written an RSS feed in a very long time (7-8 years), so I have to go back to see the specs etc.