Sorry for a little delay with my reply.
Great news about custom support service.
But it will be great if you (team) seperate missed features from a real customization.
I don’t think you’ll find any logical or business reasons not to show very important SKU information at product’s page. I even hardly believe that you can find any live online store without it.
Today we’re planning to buy a new licence for a new client, and hoping for a little help from your side.