I agree. I thought her hacking the holograms was great. I mean, sure, it's hard to imagine how she learned to do that, or how it would work after 900 years of hologram improvements (though they don't seem much improved really, what's with the echo-y voices? Putting the "hollow" in hologram?) but it's not really that big a 'hole' if you assume that she tried a trick she knew, and it worked. Hey, she was probably surprised that no one fixed that glitch in 900 years, too! But still. I liked that scene, personally.
Doesn't hurt that I love Michelle Yeoh. I met her once, 20 years ago. Still just as beautiful.