Yeah, I don't understand this whole, "my expensive computer isn't bulletproof sentiment". One of the things I was stoked about and ultimately a major factor that won me over when I bought my personal MacBook Pro back in late 2013 was that you could buy a matte screen protector and keyboard cover that fit like a glove. I had a friend with a 2009 MBP that was in amazing condition despite being his only machine when he was in high school, living by the couch and frequently being the entertainment source while eating. He had promptly put it in a case and put a keyboard cover on after receiving it.
I agree with sentiment that some laptops are going to get eaten over, but I don't think it's the manufacturer's job to make sure that it can tolerate that. Some people are never going to eat over their laptop. Like I don't bring food near my. I can tell you from experience that if I want full power on my MBP I need to take it out of its plastic case and definitely take off the keyboard cover. And I do do this when the task at hand warrants it, but most of the time I keep the cover on, and I appreciate the flexibility.
[1] I recently replaced my old one and bought this; I'd recommend it. https://www.amazon.com/gp/product/B00AQFFSAG
https://m.aliexpress.com/s/item/32774074005.html