In some sense, yes. ArkyBeagle and my implied argument is that the distinction between capital and land is a useful one. (And that always talking about capital+land is confusing matters.)
You can of course express the original observation in Marxist terms as well: it's not just any capital owners that are getting a bigger slice of the pie, but especially land owners.
Thanks to the existence of market prices, we can even abstract away from the specific owners and say that the factors of production themselves get different slices of the pie.
That works because even when some piece of capital is bought and sold, the new owner gets roughly the same amount of return on them as the old one. (If it wasn't so, we would classify whatever the new owner is doing differently as having input their own labour into the process.)
You can of course express the original observation in Marxist terms as well: it's not just any capital owners that are getting a bigger slice of the pie, but especially land owners.
Thanks to the existence of market prices, we can even abstract away from the specific owners and say that the factors of production themselves get different slices of the pie.
That works because even when some piece of capital is bought and sold, the new owner gets roughly the same amount of return on them as the old one. (If it wasn't so, we would classify whatever the new owner is doing differently as having input their own labour into the process.)