Let's put a few things here. China was never going to shoot down Pelosi's plane. China was never going to actually escort Pelosi's plane out of Taiwan air space and result in a shooting war.
There are a whole list of reasons that even if China wanted to take things up a notch, today wasn't going to be the day. I fully expect the likelihood of war to go up from this. I fully expect that China will accelerate plans to be ready for an invasion. But that day has not come yet. Maybe it will come in 2024 if a presidential candidate wants to visit Taiwan or if a new Republican speaker wants to go. Maybe it will come in 2025 when a new president in power want to normalize relationship with Taiwan. Pelosi's visit to Taiwan is a disaster for world peace, but it definitely does not cross the type of red line that would precipitate war.
There are quite a few projects that China needs to complete before it is fully ready to get in a war. Until then, they should shut up unless they are willing to actually spend more 1.4% on defense.