It mentions specific interest rates only once, which are paid to a subset of investors in the vision fund. It briefly clarifies how none of this is an insane level of debt, just a large number.
It then spends the rest of the article talking the existence of bonds and interest bearing securities, with no distinction of what they are except "hey look, a DEBT security"
It mentions how it is as large as the public debt of a nation state, after qualifying the alarm with subsets of a subset of one of the entity's balance sheets.
By this part of the article, we are actually talking about the Softbank entity's "operating basis", which was a big pivot away from what 2/3rd of the article was talking about which was the Vision Fund doing all the cool investments.
Just.... be discerning.
The general counterpoint would be that it is great that a fund structured this way is trying to back illiquid private equity. It is nice that investors get the opportunity to have exposure to the hottest deal flow on the planet, with an entity that can push for liquidity.