This seems like a perspective that needs a wider audience.  PEP 626 says there will be no performance slowdown:

> Performance Implications
> 
> In general, there should be no change in performance. When tracing,
> programs should run a little faster as the new table format can be
> designed with line number calculation speed in mind. Code with long
> sequences of pass statements will probably become a bit slower.

Now you are saying that is fine to take a small performance hit in order to conform to PEP 626.  

I am usually on the side of good tracing, but I imagine other people feel differently, that it is unacceptable to slow down all execution for sake of accurate tracing.  I would love to have a clear agreement before moving forward so that we don't have to backtrack.