If it used for farms in feudal age, then Dravidians can FC. But to what end? To build Siege units, which will die to feudal age scouts and if you do a pike + siege push, then of course there are feudal skirms which are equally effective against pikes till opponent themselves reach castle age. Dravidians using the extra wood to build archery range to support their MAA push is the most logical play. However this timing window is too small. Just some stone walls can render this entire strategy mute.
Yes, lower numbers of Elephant archers are not as effective as knights. But this bonus can make them effective with this secondary effect.
MAA is the only trick Dravidians can do. The militia speed boost temporarily lifted their winrate. However players have adopted and it happed fast at high skill levels. Dravidian winrate has dropped 18 places at the top level. Their Arabia rate has dropped 20 places and their playrate is again worse than Bengalis. I mentioned the same when the patch dropped and its happeneing.
Koreans are a defensive civ. But they use their faster stone miners for tower rush. Becasue they can’t compete against castle age cavalry civs. The same case with Dravidians. If you stone wall and play safe, its your grave. If you put a fortified church down which boosts work-rate then thats a different strategy which makes it viable to defend and then push later.
Btw, the church spam currently happening at high level is also not defensive in nature. I metioned this strat as well in an another post.
The militai line speed boost did not make Dravidians good in castle age. the +1 attack will not either. In fact, I proposed something similar in another thread.
This bonus could have come in castle age. But still won’t do much. Its better if a stronger bonus centered on infantry or archers takes its place