The article wasn't clear, maybe someone knows — how much stronger is the silk than normal silkworm silk? Comparing it to Kevlar is kind of apples and oranges for someone who doesn't know how Kevlar compares with either spider silk or silkworm silk.
“CRISPR modified silk worms produce threads made of buckyballs for space elevator”
It’s a fun thought I guess. You’d need a pretty massive crop of mulberry bushes.