The obvious problem is that the taiji community in general doesn't value this material at all and most taiji teachers don't have it so the style doesn't prepare you to fight or compete.
Would not agree with what is being characterized as the "obvious" problem.
If the community doesn't value what one is seeking, why would it be a problem for those seeking what is taught, oriented to what "they" value?
If one is looking for something expecting something that is clearly not there, maybe they have the problem.
In my experience, a problem for some may be due to their lack of empirical experience versus theoretical knowledge not being able to
understand the difference.
Taiji, somewhat unique in this aspect with very clear numerous "theoretical" guidelines documenting skillsets, gained through specialized practices such as "push hands" among others. Most often taught within very restrictive contexts facilitating the differentiation needed to make "theoretical" based skills become empirically experienced.
For some, this may be enough.
Unfortunately if they'er not "aware" it may leave gaps in their understanding / skill level, relative to application outside of a specific context.
Being good in "push hands" does not equate to being good outside of push hands...
Would say it's quite common among methods / styles emphasizing specific skill sets developed to a high-level. Many having contest within the context of developed skills, emphasizing skills / methods developed.
TKD, BJJ, Judo ect, examples of this , with some being able to bridge the gap a little more easier to use than others outside of their restrictive contest
In the OP's clip the claim of "taiji master" used to insinuate the person is a high level representation of those studying Taiji,
inferring a common narrative presented by those seeking to outline a view point for "what ever" reason.