I agree, good point. When a road meets another road, then that’s a road junction / intersection to me, even if one of the roads is now only or mainly for bicycles.
Here is an example (the road is actually highway=residential bicycle_road=yes not cycleway). If the road was narrower and tagged as a cycleway, it would still be the same I suppose?
The proposal is for a new crossing tag, junction designs are out of scope 