Tansy, the "got questions" site frequently gives good answers to biblical questions, but you still need to always test what they say against what the scriptures say and of course we all have the responsibility to test everything against scripture.
On this particular issue of a separate plan for Israel, yes, Loquat and I believe they got it wrong. Refreshed thinks they got it right. Not sure about Rainy. But you have to decide for yourself based on your own studies of the scriptures. Don't just trust that site on everything because they gave some good answers on other topics that lined up with the scriptures.
Test it all.