I will note that everything in that slide deck is "as of July 1 2021" as in two and a half years ago. It seems counterproductive to release something like this so far after the data point because by now it doesn't capture the current state of the system. The 2019 report used 2018 data which was at least more timely. There's a lot of leakage, which makes it hard to use this as a starting point - granted, this sort of analysis has to be looking back, and can't really be done on the fly, but refreshing the asset list for more accurate assessment should have been possible.
For example, a healthy chunk of the CR signal work looks like it would have been done as part of the ongoing Northside ATC work, and the transit section doesn't capture even the Orange Line surge or anything in flight or delivered after July 2021, including GLX. That means something like the Gloucester drawbridge is still in that CNIA as needing work, when in fact it's done.
That's not to say the T doesn't need to clean up how it does things - I'm just saying this analysis is so delayed as to be confusing the issue.
The "Not in SGR" category also include many items that are already planned to be addressed like all the bus garages, old Orange/Red Line cars, etc.