Yes, but they are giving experience to units in an RPG style way (so it appears), thus if the spearman beats the tank once, it's more favorable to beat another later. Why have they not (at least according to what they have publicly announced yet) granted an over-run feature where a vastly modern unit automatically over-runs an archaic unit (ie, tank over spearman)?
Taking out the a/d doesn't sound smart - whereas adding unit types was long overdue - but we all know the RNG is flawed, so why tempt fate? It sounds like we're getting a battle system that comes with improvements in the needed areas at the cost of hurting other areas that were working well.
Time will tell, but I'm just pointing out some details that will need careful tweaking to be successful.