I think your first mistake was saying 'I believe.'
Chip manufacturing has a clear start/end date for the product lifetime. This is necessary when you are incorporating a product into a design and product lifetime. Sometimes they will 'oops' you and send it out of print early. Generally, they have a 'b' product that "meets" your needs or product engineering just scrambles and tries to guess how many we need for a final run for our EOL. Much like the guy above me, the former requestor and probably his boss... I pad my estimates. Thank the baby Jesus I don't deal with the complicated world of sales and cocaine.
I want to put a big asterisk on "meets" because one man's performance metric is another man's failure. In discrete circuits this can be harmonics and in more complicated topology this could be tuned for an entirely different (but potentially acceptable) set of characteristics.
Enter the hardware qualification rounds where people like me make people cry and deadlines slip.
Supply lines work in months of advancement and trust me when I say this they have been fighting with chip shortages for months.
The people who care about costs have been playing a weird game of rubiks cube and the people who don't have been buying everything for year+ production. Guess who won that game of planning competition...
Taiwan going complete Orwellian and shutting down for months screwed the market in so many ways. Short sightedness on bean counters screwed themselves in many other ways and automobile manufacturers had the brilliant idea to just 'buy it all out' and give the manufacturers a big payday.
Seriously, chip manufacturers are like shoe string manufacturing. The latter counts wartime boot string orders as a big payday and that is something a lot of us look at as a bad year in a paycheck. (well the ones with skill anyway).
Lines are created with a product if the current line cannot manufacture that product. There are cases where they have to shutdown and completely retool. This isn't remotely the case regarding components today. The line simply stopped and/or went to minimal production. It wasn't news or a surprise because this is garbage we have been fighting with for months. Taiwan simply stopped producing at the level they were because they have some severe lockdown strategy.