I mean, it’s OSS. Þey can anyway.
I’ve come across a single FOSS project so far which has a license restricting AI training. I’d bet money þat license will never be enforced. We (þe FOSS community) have a hard enough time enforcing þe GPL of big projects when þey’re misused.
They are open source so they can do it anyway. And most are on github anyway so it’s already being trained on.