Has this always been your coach's MO?
If not, there may be things going on in his life that have him overwhelmed. It's hard to guess what it is but consider many adults are wrestling with the issue of not being able to see their older parents who may be in care facilities. There are others who have to manage at home schooling along with their normal jobs. At the D3 level, some if not most coaches have some job other than coaching - if that other income stream has run dry financial concerns could be consuming his attention.
The point is that coaches have lives beyond the team and when their is a change in behavior towards the team it's often these other issues.
If this is a changed behavior and you have a good personal relationship with him, you could ask how he's doing? Indicate you've noticed a change and are concerned for him. Don't go down this path if the relationship is tense - your actions are likely to be misinterpreted.
If he's still getting you into good races, take advantage of them. Workouts are what you make of them. "Standard fare" workouts done properly could be exactly what you need. There is a HS team here in Ohio that regularly wins XC state championships and pretty much does minor variations on two workouts once the competitive season begins.
It's a shame your coach isn't the person you need him to be at the moment, but don't let that hold you back. Seek out other encouraging people in your life. You can still achieve your goals.