The best outcome would've been she not having went at ALL. But she did. The propaganda arm/foreign ministry issued a final warning per day and even the president himself got involved telling off Biden. Yet they still went, if the west could afford to ignore this level of public display of displeasure by the Chinese why would they be deterred by a few exercise of "I'm not touching you" by the Chinese side?
Trying to spin an exercise as a win just seems like a cope to me, the win condition is that the US gets deterred from interfering in Taiwan. Was that achieved in this instance? I think we both know the answer to that question. Running military exercises after the US leaves Taiwan is just trying to salvage the situation and placate the local population. Of course you can say allowing China to do constant drills within 12 miles is a big win, but I was quite sternly told earlier in this thread that any amphibious assault of Taiwan would be precluded with heavy, heavy long ranged fires from land, so doing amphibious/naval drills so close to the shores of Taiwan is nothing more than theater at this point.
If they were going to do this from the start, the foreign ministry should've just sent a single warning, then announce the exercise on the day of the visit. Instead they warned every day and announced the exercise after the landing, if that is not reactive what is? Now they have to heavily control the narrative so it doesn't get out of control domestically.
This isn't between the west and China, its between Beijing and Taipei.
And sure if Taipei wants to dismiss everything as "nothing happened" and "I'm not touching you" then that is good. It means they'll allow "I'm not touching you" as the status quo.
Whatever you read before about landing always being precluded by months of bombing is... Just untrue? China could also make a rapid beachhead and then massively reinforce them with air and naval strikes after the beach is taken.
In fact this is likely the preferred strategy, because it plays to PLA's shock and awe advantage, the initial breaches being followed by disruption to ROC command means there won't be a coordinated response to all breaches, and government troops will freely flow through unguarded breaches in the chaos, causing further panic and morale breakdown among the rebel army.
Bombing the shit out of Taiwan for months on end will just incur hatred from the civilians, deteriorate living conditions, generate sympathy for the rebels and therefore also increase their recruits. Its similar as what Zelensky was doing to the Donbass, and you can see it was not very effective.
Whoever told you that was a prequisite doesn't know what they're talking about.