The initial motivation was good, and the results interesting, but this filter has two main problems:
- It shadows the rest of projects (obviously), with the consequence of not seeing hoiw good or bad ar the key projects performing next to all the rest.
- It is laborious to maintain properly, more than expected. If the list is not up to date, then the filter is rather pointless.
Thank you to @Acs and co for the extra work this implied. As said, I think it was worth trying. What is good about this change is that it removes a layer of complexity and risk of mistakes.