Yes, that is a very good idea for ‘woots steel‘ which by itself should fix dravidians aweful castle age. Urumi should not benefit from it though. They don’t have any role in Dravidians gameplay though. You can always use swordsmen for any Urumi role and they are far cheaper as well.
Yes true. Dravidians are a pain and devs are never going to fix the civ since it is part of base game now. I think the idea of reworking of 5 civs and getting out 5 new ones which closely resemble them geographically in a different period is a great idea to address the civ’s weakness. We have Romans and Byzantines already anyway as a precedence. The “Successors and Forebears” DLC could be similar to Age of Empires II: Forgotten Empires with 5 new civs which don’t come from the same region. I don’t necessarily agree with @GentleEvening5 civ choices. But its a good idea to address all the longtime rework demands in a single DLC. I think the rework template of Dravidians from that thread could go a long way in fixing the civ.
Along with these changes, a couple of tech tree changes might help
REMOVE - Hand Cannon
ADD - Final cavalry armour - Blacksmith theme focussed civ should have a full blacksmith. Light cav line with 60 HP is nothing to write home about. But it does compensate Dravidians need for a high Pierce armour unit albeit with HP of an infantry unit.