To put things into context, the link you are referring to is presumably this one - Ubuntu Download
The top entry says :
Download the latest LTS version of Ubuntu, for desktop PCs and laptops. LTS stands for long-term support — which means five years, until April 2023, of free security and maintenance updates, guaranteed.
and the section below that says
The latest version of the Ubuntu operating system for desktop PCs and laptops, Ubuntu 19.04 comes with nine months, until January 2020, of security and maintenance updates.
So you have the choice of a long-term support version for 5 years, or a bleeding edge version that will be frequently updated, you just have to choose which one is more appropriate to your use case. The wording can't really be a lot clearer but you seem to want to take it out of context for some reason.
You might note that the longer-term supported version comes first and for those who know why they might need bleeding edge, can find it too.
Compare that to the bleeding edge versions of Windows and the long-term versions that don't seem to be particularly long at all. 2 years to quote the article for Windows vs 5 years for Linux. This is not my opinion, just plain old facts from the article and the source you misquoted.