It was always there but it required much more activity to get it done (document your use case & traffic levels and then work with your TAM to get the limit changed).

I don't see that in this post.

I just started working with a vendor who has a service behind API Gateway. It is a bit slow(!) and times out at 30 seconds. I've since modified my requests to chunk subsets of the whole dataset, to keep things under the timeout.

Has this changed? Is 30 secs the new or the old timeout?