I've seen this more and more with software landing pages, they are somehow so deep into developing/marketing that they totally forget to say what the thing actually is or does, that's why you show it to family and friends first to get some fresh eyes before publishing the site.
In a similar vein, lots of software is Mac-only, but omits to say this anywehere. You just get to the downloads page and see that there are only mac packages.
How hard is it to add two sentences that says only macOS is supported now and in the near future? Iād rather do that than annoy future potential customers who might have a Mac or plan to get one at some point