How would it benefit YOU to acknowledge the anniversary? Forget her and what the date means to her and blah blah blah.
You're focusing too much on how she will react. Forget about her right now. If the anniversary was so important for her, wouldn't she have tried to work on the MR? I'm just saying. It's just a date - for reals.
I had my anniversary two months back and I didn't plan on acknowledging it. W msged me saying something like she didn't think we'd be here - separated. So I acknowledged it and moved on. I didn't initiate it.
A text or even in-person acknowledgment of this isn't going to somehow make any difference in your sitch. It's a small thing. If you do acknowledge it, don't expect any thing to happen or change.