Welcome back to the game, hope you like the new warband system
I haven't played much with Harad, but I'd say it looks like a good start. One thing you might do as a general rule is make sure all your warbands are filled, as it tends to save on the number of heroes you need. For example, you could add a few watchers of karna to Suladan's warband, they might be more effective than Abrakan Guards. Then you could skip the bosun and pack Dalamyr's warband with reavers backed with spears.
And yes, going by just the profile, the reavers appear to have been tweaked to be very effective.