Earlier quoted context omitted.
Apple was deliberately putting bad cooling into those laptops because they had other priorities I don't understand. So I suppose they could always make the cooling on their new laptops even worse, and then the iPad would pull "ahead".
Jony Ive was the problem. Many things have improved since he was effectively fired. Note that his position was axed, no designer will ever again wield the power and influence at Apple he abused.
Besides whoever is in charge of designing MacOS.