Hard to argue against Ratel but…aardvark, aardwolf, bat-eared fox, or Serval (which were originally planned to arrive instead of the meerkat years ago but that’s another story). The possibilities are endless!
The fact of the matter is that meerkat (afaik) are NOT a conservation-dependent species. They are a ten-a-penny species that can be found in nearly all collections (and beyond) that breed like rabbits and appeal to the lowest common denominator. And that’s the problem. Meerkats equals Money. It’s not the animal’s fault at all, but it does demonstrate a clear lack of ambition on the part of ZSL.
Potentially having “Europe’s biggest meerkat exhibit” is a nothing statement to me, much like the ZSL press office continually saying “Whipsnade is the UK’s biggest zoo.” That would imply to the average visitor you’re the best. Sorry, you’re not. I hate to say it because I love the place, but (irrespective of the pandemic) in the last decade, other collections have superseded the ZSL in scope and ambition. The ZSL sites have lost an Aquarium, a Reptile House, sealions, wolves, bison to name a few because they played the fiddle whilst Rome burnt. Whipsnade still operates on 1930’s plumbing and piping for heaven’s sake!