Again - it's a question of knowledge - the enclosure became free because the two young tigers were moved up to Tiger Rock after the older tigers had passed away. This was not discussed the day the last tiger died - Tiger Rock stood empty for a little while - the zoo mourned their passing - the public left flowers. A little respect for everything and everyone - that doesn't hurt does it? The tigers were held in special regard because they were part of the original line up - Benjamin Mee's original line up. These wolves were once someone else's original story.
I'm aware of why the enclosure became free.
The zoo themselves have not said anything about how the enclosure may be used when posting the news of the wolves being euthanised - I'm not sure what you want Dartmoor to have done differently to be more respectful in terms of reporting the news.
As for Kim Ellis' facebook page - it gives a very one sided view of the situation imo. On the one hand you could say the zoo 'forced' the wolves to be signed over. On the other hand you could question why the Ellis family found themselves unable to care for them and as such - why the zoo should be expected to provide indefinite 'temporary' accomodation. There are always two sides to a story. As this one appears to be full of bad feeling on all sides I don't think one persons social media is going to provide much perspective. Incidentally - I also don't think you can criticise the zoo for deleting comments when Kim Ellis is doing exactly the same thing.