WarCraft III is not DotA. Blizzard does not make the decisions regarding your maps, you do.
To reinforce this, here is a video where I code my own Moba map, like DotA, in 20 or so minutes:
Don’t tell them how they should update DotA, because the community who made DotA using the WarCraft III engine are the ones who make those decisions. WarCraft III is not like other games that want to strip you of intellectual freedom and creativity and force you to do what they say. WarCraft III is better than that in my opinion.