How about we critique the actual movie rather than a gif, that bit is like half a second on loop
I love how people just try to hand wave this away saying "it's only a second" like that somehow makes this moment any less stupid.
Obi-Wan vs Anakin in Episode 3 is basically the prequels in a nutshell. It's a fight that's entirely about flash and visual eye candy in order to mask the fact that there's almost no emotional investment in the conflict. It's Lucas devolving into a 5 year old playing with action figures going "first they start fighting in this room and then they're swinging on ropes fighting each other and then they're fighting on robots in the lava".
Why didn't the Empire carpet bomb the rebel base on Hoth with Tie Bombers instead of sending slow ass AT-ATs? Because drama.
So much of Star Wars doesn't hold up if you try to "but why didn't they..." it. Movies in general, actually.
Because there was a giant shield around the rebel base that required a ground force to go in first. The movie sort of makes a big deal about one of the AT-ATs going after it.