@d-v I don’t think it will fit with Suunto’s approach to training - as I understand it.
There is that saying “Your Garmin will judge you”. Your Suunto won’t do this. Suunto will give you all the data needed, as @raven already wrote, and will happily educate you to judge for yourself whether you are ready or not. Also you get the Suunto Coach, that tells you some of the things that you might look closer at.
I think the education and the support to understand what you are actually doing is worth more than such a score. Like telling you the training model that you are following, but leaving you the freedom to decide, whether it is actually a good or a bad thing in the bigger picture…
However, what I love to see is a current recovery time. I’ve seen a video on an older version of the Race software and it seems like it has been in the Resources widget. But in the current version it isn’t there anymore…