12,14,16,20 week cycles are ill-advised for most people unless you [1] don't care about hpta function [2] don't really care how long you are going with fucked up health markers or [3] don't really care how long it takes for health markers to return to baseline.
Therefore they are especially ill-advised for first time AAS users.
I agree with the article and would rather a beginner run a 6-8 week cycle with tren or some oral AAS than a 12 week test cycle that isn't even that great first of all, and requires you to stay shut down not only for 12 weeks, but a few weeks after that before you can attempt to recover your axis.
Tren sides are over exaggerated imo, especially on the boards. They aren't as prevalent or bad as most people make it seem for most users, and running test or any other AAS isn't really going to prepare you for the common tren sides, so it doesn't really stand to reason that you can't run it at cycle 1 but it's okay for later on down the line.
This article was worth reading and something I hope people will learn from because of how dogmatically people prescribe or suggest first cycle recommendations and the bro-science that permeates around them.
One particular example being that oral only cycles will just shut you down with no gains, and occasionally, people suggest you will be smaller after you are done than before you started. LOL, okay. Meanwhile I ran 50mg drol qd for 7 weeks and made fantastic gains. The only reason I don't recommend those cycles is because you may as well run more weekly mg of anabolics if you're going to shut yourself down and you can't do that with orals alone unless you run 150mg drol qd.
The biggest thing people need to realize is that gains for intermediate and advanced lifters doesn't come in a linear way. Nothing does, whatever the goal, if you are further along in your development, things will come in waves. Hell, even weight loss isn't linear. This just further emphasizes why shorter duration cycles with higher weekly mg is ideal compared to long drawn out cycles that will have you walking around with fucked up lipids and higher systolic/diastolic #'s for longer. Fuck that.
Compare the gains at week 16 vs week 8 on a cycle where weekly mg and compounds stayed steady and you will see what I mean. You would have made more gains, but it would only be marginal improvements at that point. Not worth it.