The GUIs I have the misfortune of using on a regular basis are VCS and Design Compiler. They are laggy and stuffed full of weird bugs.

However, 99% of the time I'm using the text interface instead since I can type faster/easier than I can move a mouse accurately around, and I'm mostly running scripts anyway. The tools mostly produce textual output so it seems natural to give them textual input. So while they do suck, it's because they are not seen as worth investing in, and the vendors are probably right about that. Some new hires do miss the shiny interface at first but then they go on to get stuff done. Plenty wrong with EE tooling but text-based isn't one of them.