Yes and no, I think there are a number of alternative ways to keep such a talk list within Agenda, in fact that exact type of “next time I see my boss I should not forget to discuss ABC” scenario was even wat led to Agenda in the first place 
I think we can make some improvements still that might be sufficient for your needs, but there’s also a chance this kind of workflow simply doesn’t fit too well in Agenda as it is. In the end of the day it’s finding a way that works for you, which might mean some experimenting with alternatives if we don’t go all the way with date-less reminders.