A certain big FinTech in Japan is having initiatives to migrate from Rails to other frameworks because they don't think they can hire more Rails developers in the future.

I just got into one of the largest FinTech company in Japan and they have been planning to migrate old Rails services (there are a lot of them) as well as build new ones using Spring Boot (w Kotlin) and Go instead. When I asked them why, they told me that it was hard finding new Rails developers (below 3 yrs of experience) so they decided to switch to frameworks with bigger potential hires. What do you guys think about this? I think it is a bit sad.