It's pretty common for Alice-style keyboards to have two Bs (the one in the pic in the article does) as on a normally-staggered keyboard the B key is basically equidistant from the home keys so it's common to use either.

But it would be a bit of a problem for keycap sets, some come with extra Bs to accomodate Alice keyboards, but none that I'm aware of have extra G/H/T/Y. That would mean you'd be into buying two sets or using weird keys, so it's probably unlikely to be a popular choice.

That said, there's so many custom keyboards out there, and it's easier than you think to design and build your own - if you feel strongly about it go for it.

I did have that problem a little when learning to type on a split, but I very quickly corrected after hitting the table a few times haha. I actually think it's arguably easier to learn to type on a split as it'll quickly force you to break some bad habits.