First, let me say up front that I am neither a Manjaro developer nor involved with Manjaro GmbH. I am only a Manjaro user and have been a (quite dedicated) forum member since April 2019. This should put some light on what I'm about to say next.
Getting to the point, that article is already old ─ I've come across it myself in the past ─ and it was obviously written by a disgruntled user or an Arch fan. Many of the things said in that article have been exaggerated and/or drawn out of context, such as the monetization that you seem to be concerned about.
Yes, there is a company called Manjaro GmbH, located in Germany and run by @philm and @oberon, and this company seeks to promote Manjaro as a GNU/Linux distribution by engaging in commercial deals with hardware manufacturers for the production of computers that come pre-installed with Manjaro GNU/Linux. There is nothing wrong with that ─ Canonical does it too, with its Ubuntu distribution ─ and this has no impact on the free availability and maintenance of the Manjaro GNU/Linux distribution.
As for installing multiple updates per week, this is only true in the Unstable branch, and possibly in Testing. Manjaro Stable gets bundled updates about twice or three times per month. The updates are bundled together so as to make updating easier, and so as to make sure that they've been sufficiently tested before being pushed out. This is why Manjaro is a curated rolling-release distro, and not a plain rolling-release like Arch.
However, that all said, as with every GNU/Linux distribution, by using Manjaro (or any other distro), you are also assuming the responsibility over your computer, its operating system and its application software. If you're looking for a "set and forget"-type of operating system, then GNU/Linux may not be for you, and then a rolling-release distrbution ─ curated or not ─ will definitely not be to your liking.
Many newbies are using Manjaro, and unfortunately, often bringing their Windows habits with them into GNU/Linux, which is an entirely different operating system. But if you're willing to learn and assume a modicum of responsibility, then I don't see why you couldn't be using Manjaro. It is more user-friendly and newbie-friendly than Arch.
And in the end, the same is true for the Manjaro forum. Here, we help the newbies. Over at the Arch forum, newbies get bullied.
I'll get off my soapbox now.
Thread moved to #general-discussion.