I think a better question would be: Should we listen to UBM just because he is UBM? The question here in general is: Should we listen to people that know not

I think a better question would be: Should we listen to UBM just because he is UBM? The question here in general is: Should we listen to people that know nothing about our situation? The question is not: Why we are not using Closure? The question should be: When is Closure a good tool for use to use? And the answer to that is not because its 2021. A better question always will be: What is the right tool for solving this problem, building something or reparing something that is broken. Yes you should look into other languages. Yes you should not use one tool for all problems. Also you should not use a new tool every time a new problem comes. You need to balance this out. In the beginning you will not know if this is the right tool but you should try and you should be ready to destroy what you build. So that you have learned from it to build something better.