My experience has been that interviewers like you are rare. I may have reflected on my observations incorrectly, but it seems to me that depending on a newcomer

My experience has been that interviewers like you are rare. I may have reflected on my observations incorrectly, but it seems to me that depending on a newcomer to quickly learn a language and adapt is seen as a high-risk investment. I consider myself an adaptable person, and while I was able to make this impression upon prospective employers in my early days, they would always weigh this against the cost of training me for "longer" than the average employee. In a sense, they were right. I have noticed myself increasingly comfortable with new codebases whenever I change jobs, so experience definitely counts for something.