Here Are the Most Popular Web Frameworks with Seed and Early-Stage Startups

At best this is a lagging indicator in a fast moving world. If you assume that those raising an A round in 2017 started their company two years earlier it makes a lot of sense.

I think pg said it best is his essay beating the averages:

"When you choose technology, you have to ignore what other people are doing, and consider only what will work the best"

Is Spring really in the same category as React and Angular?