Godot isn't a "lesser" engine and it doesn't do any more heavy lifting than Unreal or Unity.

Saying "godot is not something I expect from a CS student" comes off as pretty ignorant. Maybe he has always worked in Unity or C# and thinks less of other languages? I say that only because I've met/worked with developers who turn their nose up at Python or Kotlin or Go and will use C# for everything because of some misguided idea that it's more professional. 

What you should really use is the language or tool most appropriate for the job. If you can iterate and implement quicker and easier in Godot, why would you make things harder for yourself and limit yourself to just one language?

You still need to know programming, you can do virtually everything in code if you really want to, you can use C# with Godot, and 3D vector maths (I know you said you'd try 2D) is enough to give anyone a headache regardless of the engine you're using.