I once went to a professional to get a website done (as my ability (read: patience) to code websites had proved inadequate) and they constantly tried to upsell me on just the most stupid bullshit. When I pointed out how a lot of moving parts just means more things that could possibly break they blew me off and acted like it was a completely unreasonable concern. Needless to say ended up using a website builder instead and despite a few small glitches it works pretty well with JS completely disabled.

EDIT: I was particularly concerned with how heavily they were leaning on JS, to the point it flat out wouldn't load at all for some users. Having JS flair is perfectly fine on the side but when you can't even get fucking text to load without it, that's a problem.