I'm one of those "real engineers" that studied 4-6 years of maths, and this gatekeeping feels very silly to me.
Some frontend developers are doing more actual engineering than I did when I was working as an actual electrical engineer, and I was working on buildings and shit.
Not all frontend devs, though, and certainly not the ones straight out of a bootcamp, but a lot are.
But the people building foundations for others to work on (like the target audience for this library) definitely are doing some sort of engineering.
Some frontend developers are doing more actual engineering than I did when I was working as an actual electrical engineer, and I was working on buildings and shit.
Not all frontend devs, though, and certainly not the ones straight out of a bootcamp, but a lot are.
But the people building foundations for others to work on (like the target audience for this library) definitely are doing some sort of engineering.