I think the new winning pct is MUCH better than the old way. The old one ALWAYS moved up, you couldn't see when your team was trending down because it ALWAYS went up. With winning pct it is MUCH easier to see when your team has hit a skid.
Now, I do think they need to zoom in some, there's no reason to have the top be 1.2 and there should be a line at .500 which would be very valuable. To me the chart should be from .200 to .800 with anything above and below just off the chart since this only happens at the very beginning of the season anyway. If the numbers show are closer, the variance will be larger.
Look at the Central here:
https://365.strat-o-matic.com/league/438103It is much easier with this chart to see that Sheboygan rode a hot streak and then slumped while the Northmen have had a slow climb.
I'll post an image later tonight with what I think it would look like if it were zoomed in with a line at .500