I thought the same thing.

He looks older, especially when he has a beard. I thought, "Oh come on, she looks a good 15 years younger than him." Out of curiosity, I looked up their ages. Tyler is actually only one year older than her, at 36.

Her agent was probably stressing that point in trying to her get an audition.

But, in the end, it's about what their
characters look like. And they didn't look the same age. However, she did really act the part well. So, beyond that it worked out.
Yes, or the stories don't quite fit them. It's nice to keep seeing our favorite "Hall-stars" year to year. Especially the ones that made the cut earlier in the year to the "new Hallmark." Yet, as they age, the writers need to write or find more age appropriate stories for them.
What comes to mind was the recent Andrew Walker movie. He was definitely the star in that. They even gave him a new leading lady. Yet, his role was still a younger man, eager to win his father's approval, especially in business. While someone may want to win his dad's approval at age 90, it was the business part that seemed young to me. They could have tweaked that a bit to fit someone who looks Andrew's age now.