I think that most of those people are not familiar enough with the system that they are complaining about to understand why its so complex. I have been involve

I think that most of those people are not familiar enough with the system that they are complaining about to understand why its so complex. I have been involved in paying off many kinds of tech debt, and I see a lot of people scream maintainability and then realize the problem that the horrible thing solves is itself a horrible problem. If you can fix it, fix it, if you think its going to take months to years of work to fix it to be maintainable the truth is likely you never will. Any product that is static long enough for you to do this is probably not making enough money to justify the cost of doing that kind of refactor except as a hobby project (or was really well designed in the first place, or is a literal hellscape you should let die.)