Yes, but one has to look at individual presentation to make valid decision.
My husband is basically none of the "standard" groups used for that diagram. For example, his PSA was 7.6 (now 5.2), he has low tumor burden BUT he is actually "unfavorable intermediate" because he has IDC and cribriform present. IDC and cribriform are the one that put him in high risk so he has to have aggressive approach, regardless of the fact that it is one singe core in the whole prostate with gleason 7.
On the other hand, because he has one single core with that presentation and because his cancer is one singe spot contained inside the gland RP is by both experts deemed as curative in his case. Yes, they both said "curative" for RP. I even asked about "salvage" radiation and RO told me "nah, I do not think he will need that". I was surprised, but hey, was nice to hear it. IDC and cribriform sometimes show resilience to radiation so to choose radiation as the first step would not warrant complete eradication no matter what any diagram shows.
Only time will tell if RP was "curative". One has to choose the step that is "the best at the moment" and at the moment for his particular case RP is the recommended path.
Yeah, nothing is perfect for every case. Sounds like you did your homework which is the important thing and cane to a reasonable pathway.
Good luck!