It is always easy to complain but you never know how all this evolved. Maybe the founder had hard times to find the first developer. Maybe the first developer c

It is always easy to complain but you never know how all this evolved. Maybe the founder had hard times to find the first developer. Maybe the first developer could not do it better. Maybe this setup only attracted weaker developers and suddenly this mess was set in stone. Maybe the business model doesn't provide enough margin to justify a rewrite of large parts of the legacy code and so on. And I could also easy complain about you: why did you choose this aged stack for your first programming job in 2014? This stack is still very popular and nothing bad but yeah, there must be some reasons why you chose this stack which I don't know. But I won't complain.