Actually, I wasn't suggesting that they had too few adventurers at all, actually.
I'll withhold an opinion on that until I've played them more than twice
What I do assert is that *I* personally found the mechanic by which you get them a bit wierd and counter-intuitive It's not normal to choke off specialists by clicking food AND coin AND hammer in your capital, and it wasn't intuitive to me to do so.
So, maybe the same amount of fun, (and more balance, if the devs think that they need a slight nerf) could be had with a slight rework of the same mechanics.
Some of the suggestions here sound very good to me!
I'm on my second Grigori game now, and I have 3 heroes so far

I've had to consciously choose cities to be "specialists" or "adventurers" and structure them accordingly. It's working quite well, though I found on harder difficulty that without my usual eldercouncil/sage/academy boost I have fallen massively far behind in technology versus the AI....
I like some of the things I read here now, sounds good