No it does give HP. But it's also the fact that more troops = more damage/def too. But it's the only way to raise hp so it's the first use to me. No regen passive on the troops items so?
For the friend list it was a general reminder, not targeted at you lol
Edit: well saw someone made an item list, and should be on 3-4. Guess I will get some Raku before
Edit2: guess I final have 20+ friends and just discovered youw ere limited. Kinda sucks ><