I largely agree with his point that fascia needs to soften and adapt, but I don’t think that means beginners shouldn’t stand. Standing was actually a foundational pillar of my practice for the first several years. It helped reduce sensory “noise” and refined interoception, building awareness and sensitivity in the body.
However, later I did stop standing for 8 years for exactly the reasons that he is outlining in the video. I realised that the fascia in my shoulders and upper back was stopping the possibility of full release of the shoulders, and that standing wasn't sufficient to remodel that fascia. So I stepped away from standing to focus all my training time on silk reeling and form work, that was capable of doing the corrective remodelling of the fascia that I needed.
Even so, I continue to feel that early standing practice is highly valuable for laying the groundwork for deeper, long-term development.
I actually wrote an article on exactly this topic, if anyone is interested:
https://www.taijiquan.quest/post/the-changing-role-of-stillness-when-zhan-zhuang-insufficient