You want to know what will happen if bots will become able to block? Just go and take a look at NordInvasion
People there aren't crying because of bots being able to block, chamber, feint so fast that even Phase would faint from the speed, they just use an old, forgotten in cRPG and apparently WORKING strategy: TEAMWORK.
There are no solo heroes there, even guys with best equipment, highest level and helluva-long range weapons eventually need to cooperate with other players to succeed. One thing that DTV and NI have in common, is that reward depends on survivability of players and teamwork (I know NI rewards more for kills, but still)
You want to dominate in DTV? Keep bots on range, don't let them attack you at once (keep them in line, for example), have a long weapon and hard-hitting build.
You want to dominate in NordInvasion? Work together with other players, build barricades, TEAMWAAK
So, if you'd ever consider improving DTV again, give us some barricades and, if you could, make bots able to attack them, instead of just ignoring and getting stuck. Would be lovely