I voted for ‘Essential’ but I want to caveat it: I think it’s important that you have a gluten free option.
I’ve read that it’s not a good idea to cut out gluten if you don’t have problems with it (because your microbiome will eventually lose gluten-digesting bacteria, and then you WILL have a problem with it), but as there are people who can’t handle it, there should also be an option for them.
Same as you currently do with sucralose, really.
On the other hand, very few people do 100% Huel (afaik) so people can always eat a few slices of bread now and then. I suppose my biggest concern is that some people could stop eating gluten almost by accident, not knowing the risks. (I suspect the microbiome would shift back eventually, but not without a period of discomfort…)
(My understanding of the issues is mostly based on the book ‘Fibre Fueled’ by Will Bulsiewicz, which I highly recommend.)
Apologies for the wall of text, brevity is not my strong point.