[skeeter2020]

quick answer: this takes time & energy; the interviewing company is willing to miss you to save this effort. Plus the interviewers are not likely to be good at these tasks, even if they're solid developers; it's a skill they have relatively little practice and training.

[higeorge13]

I understand this for a dry candidate pool. I have been there as a hiring manager, you need some signal with take home or live interviewing. But on the rare opportunity that you find someone who is willing to talk in details about a similar project you want to do, you skip the pipeline and if he indeed built it, you hire him.