Some nocturnal houses provide superb exhibits; the nocturnal section of Frankfurt Zoo's Grzimek House springs immediately to mind as one that displays its animals well.
However, I have reservations about nocturnal houses for the very reasons you describe. Moreover larger mammals (e.g. aardvarks and Tasmanian devils) always seem very cramped when confined in nocturnal houses too.
Several species that are often kept in nocturnal houses show themselves well when kept in natural daylight. The echidna at Paignton and the aardvarks at Africa Alive, for example, can often be seen without the need for a special nocturnal exhibit.
It is many years since I last saw a Tasmanian devil but I recall seeing this species very active, outside in bright sunlight, in both Rotterdam Zoo and Los Angeles Zoo: so much nicer than seeing them in a nocturnal house.
I agree with the points that you raise. Traditional nocturnal houses leave a lot to be desired, and there are some important recent initiatives as you suggest. Many nocturnal animals do exhibit well when shown in daylight. The fruit-bats in Jersey are a good example of that.