I think you're fine. That's a crazy amount of teachers to keep up with and be expected to provide gifts for. We would have had to have a "cut off" too if we were in the same situation.
Maybe next year, you can still give gift cards to the main teachers and then bring in bagels or a cookie tray for "everyone." I feel like when you're in a situation like this - or when you fear you might leave someone out - that's a good way to cover your bases.
I like this idea a lot, thanks! DS will be in kindy next year but will have a whole other group of SN resource teachers; a group gift would be perfect. I feel strange handing out gift cards, especially to public school teachers, but it just wasn't how it was when I grew up.
Part of my problem too is that our private school teachers don't know the public school teachers- so they don't really comprehend the extent of teachers we're dealing with. Or maybe they do and I'm just overthinking it. At any rate, this time of year makes me fidgety!