It might seem to soon after her death to show such a programme,BUT,what we have to remember is.
They have (given Wendy's condition) had this programme "in the can" for some months now.
If left to the ordinary schedulers we might not see such a programme for months,and then possibley never!
Did you know that there is an Obituary deaprtment at the BBC.
It consists of staff who update the Obit programmes(such as Wendy's) all the time,with new facts,film etc.
So when someone famous(and usually old) dies they have a programme ready made to show.
Morbid isn't it!
I am old but they haven't asked ME for any home videos etc! LOL