kaya nga wasn't she supposed to have thousands of unsullied? and why do they fight like amateurs? lol
In the book, there was no attack on the queen at all. The Unsullied had Meereen under control, Selmy was still serving, Hizhdar Loraq wasn't killed, and Jorah and Tyrion haven't even faced Daenerys yet.
Drogon flew into the arena, attracted by the noise and began torching and feeding on the gladiators (a woman warrior versus a wild boar). The crowd started throwing spears at the dragon. To protect the beast, Daenerys mounts him and flies off.
I guess the show runners wanted more drama.