What's up with AoEII: DE not being tagged a RTS on twitch?

AoE: DE and AoEII: DE on twitch.

It might seem just a minor thing, but is there any particular reason why it should only be tagged with "strategy"?

I regularly use the RTS tag to know which games people are playing the most and to find cool new stuff.

It should have both tags, like AoEII: HD and other major RTS games already have.