I can't tell if this sarcasm or not. Clicking through 100 slides takes quite the effort, even if you're just skimming.
In principle I agree with you and, for most of the presentations I give, I make the slides available but they're pretty useless.
That said, a lot of people find information presented in the form of a slide deck more approachable than a multi-thousand word written report.
That aside, I'll note that if someone wants a slide deck of thoughts somehow, this is still the wrong storage format for this information: having all the slides one after another on the page would provide the same enforced thought clumping while allowing more random access to the content.