OP here. The reason why the stack requirement bothered me was that, during the phone screening, I basically told the hiring manager that take-homes are fine, b

OP here. The reason why the stack requirement bothered me was that, during the phone screening, I basically told the hiring manager that take-homes are fine, but I walk away from anything that has a laundry list of required frameworks. They were looking for a very senior developer, not someone who would come in and know their stack on day 1. In my case, the problem wasn't ASP, it was all the other frameworks and patterns they wanted.