Question : Why would people (these days) be motivated to spend time on reading about a subject slowly as opposed to trying to read short targeted content (blogs/tutorials) quickly and jump into the practical bits?

May be it's just me and the kind of people I have been meeting who do not seem to have as much patience and time and would prefer getting hands-on experience quickly.

I can see how I might sound complaining about going through ~30 pages of information whereas full books with several hundred pages take much longer to read and this is relatively much shorter.