Yep. I noticed that. It's worth noting that he basically says "I didn't want to choose this. But building a multi page site would've taken longer."
That's a hell of a statement. I disagree in general of course. But the context is important. Essentially he makes an assessment of his team and what they would able to get up to speed with. Building a SPA with react is the only thing they knew well enough to give them confidence. There is a lot to unpack there.
https://toolsforthought.social/@billseitz/112759194466807431