Introducing more trail braking will absolutely increase your front tire wear, and on a lightweight, relatively low horsepower bike like yours it is certainly possible to have the front tire wear out first (compared to the rear) just from this change in riding style/habits. It makes sense, of course; by trail braking you are considerably increasing the load on the front tire in the corners, and instead of the braking forces being applied primarily with the bike upright, you are now putting braking forces on the tire while leaned over. So now the front tire has to handle steering/cornering load AND braking load on the sides of the tires, and that is where the wear is showing in your photo above.
Additionally, that change in style could affect when and how hard you are applying the throttle in the corner, and how much you are, or are not, leaned over when driving out of the corners, which would change the wear on the rear tire - potentially decreasing it if the trail braking is causing you to delay your roll-on. There is not a lot of wear on the sides of the rear tire in your photo which would imply that the gas is not being rolled on very much while leaned over.
I have a 250cc bike and at one point I tried doing a lot of trail braking on the track; I was racing other riders that were doing it a lot (in nearly every corner), so I decided to try that and see how it worked for me. I was very surprised at the change in my tire wear; as you just experienced, my front tire wore out first, and much more quickly than expected, where in the past the rear would wear out first. After that little experiment I changed back to using trail braking in the corners where it was appropriate but NOT in the ones where it wasn't needed, and I went faster and was a lot less worried about crashing. Most of the other riders I was seeing on track were WAY overusing trail braking, braking too long and too much for most corners.