This makes no sense at all. The business needs to make money to pay you. Your time is the development cost of the software. It is completely reasonable and rational for a company to say, "This is valuable to us if it can be built in three weeks, but if it takes longer, we don't want it." Because three weeks of paying your team costs a certain amount of money, and a cost higher than that puts the value of the work underwater.
If you cannot forecast whether it can be built in three weeks and then deliver against that forecast, you aren't doing your job.
> Wasn't agile created to solve this BS?
Agile sets regular deadlines for shipping to customers, that is literally the core idea. Instead of one big deadline 6 months from now, you have a small deadline every two weeks for the next 6 months. It's still a deadline.
If you cannot forecast whether it can be built in three weeks and then deliver against that forecast, you aren't doing your job.
> Wasn't agile created to solve this BS?
Agile sets regular deadlines for shipping to customers, that is literally the core idea. Instead of one big deadline 6 months from now, you have a small deadline every two weeks for the next 6 months. It's still a deadline.