Yep, that’s the idea. But I think it’s too soon to tell whether it works in practice. So far I like it. I liked the previous system as well; as long as there are means to expand the roster and replace losses the system works, personal preferences aside.
I do think that the havens should provide both raw recruits and experienced troops as part of on overhaul of diplomacy (whether something like what I suggest here Diplomacy and base management overhaul proposal, or completely different).
What I object to is messing with the stats & skill system to address recruiting/loss replacement.