I don't think it's okay. I'm not talking about attacking aspect, but about defense. When they increased talents of defense sicarios, their range and added adiditional health bonus, the game became a bit more balanced. Many of us saw an opportunity to invest also in base defending, expecting to pay off, so we bought new sicarios and fused their talents. I got a lot of succesful defenses for a while, until that matchmaking update. The point is, I would never had invested the money in defense sicarios if I knew I was going to be raided by higher levels (even if "only" 2-3, it is still not fair). When the same level enemy attacked you, you got relevant feedback on how strong your defense is, now that's broken. No point in trying to defend your base anymore, you'll get raided anyhow, right?