Earlier quoted context omitted.
Eclipse (as in ecosystem) is fairly popular in Enterprise, but since it exposes all the knobs, and is a bona fide IDE which has some learning curve, people stay away from it. Also it used to be kinda heavy, but it became lighter because of Moore's law and good code management practices all over the board. I'm planning to deploy Theia in its web based form if possible, but still didn't have the time to tinker with tha…
Theia is different from eclipse IDE it's written in JS not in Java and didn't share any code base of eclipse which is fully Java
This is why I used "(as in ecosystem)" in the first paragraph. It was a bit late when I wrote this comment, and it turned out to be very blurry meaning wise.
My bad.