Is there any logical reason why the unit requires soldiers to take a weekly PT test when they are 90 days out from any school?

If you fail a APFT during a school, the Coc/NCO Support Channel catch backlash. Units may possibly lose slots for that school in the future. Schools boot Soldiers for failing (while I was in). I've seen the "1 APFT within a month of leaving for a course" but weekly must be a pain.

On the bright side, It's only an APFT and you're done.

Just read the end. Height/weight weekly probably means someone is borderline.

I can think of two possible reasons (although there certainly may be more). First, the Bde CSM may have been burned in the past with a soldier failing an APFT (or body fat) while attending a school. Thus, the policy could be an overboard attempt by a risk adverse CSM to avoid that ever happening again. Second, the Bde CSM may have simply wanted to establish and implement a policy that doesn't target or publicly identify any specific marginal soldiers. Therefore, everyone gets treated the same.

While this wouldn't be my approach, I wouldn't be bothered by it if I were in that unit. After all, an APFT is nothing more than a structured PT session, and everyone has to do PT on a regular basis. The only real issue would be if it were a record APFT every single week. Most troops tend to push themselves really hard when they know it is for record, so that can be problematic when taking a record APFT every week (the body does need recovery time). However, if it's just an informal APFT to make sure that you're not borderline, I'd let up a little and not kill myself for the extra few points here and there. I was always a 270+ on the APFT. If it were an unofficial APFT, I wouldn't have a problem with being somewhat below that mark. The body fat measurement issue isn't a big deal. Someone should always be in compliance there, and it doesn't involve strenuous activity.

The military is notorious for mass punishment. Though this is not punishment in the usual sense, it still is. The idea that a few did something wrong, got drunk, failed a PT test, showed up late for formation, whatever... then command creates the overbearing need to ensure no one does. SO then they punish the guilty and the innocent equally. If 98% of your soldiers do really good on the PT test why punish them because t 2% don't? If one soldier got a DUI why lock down the entire unit?

In civilian terms it's like a mass shooting, what is the first thing everyone says? Gun control. Why punish the millions of law abiding safe gun owners because of 1 nut job?

The same applies to the military, punish those who are bad at PT, drink too much, have difficulty showing up on time. Make examples out of them if you must but stop punishing everyone. It kills morale, it does nothing to fix the problem, because the bad apples are still bad, but now you have contaminated the entire batch because of outdated ideology that punishing everyone will fix it. It doesn't.

LA and Chicago have the strictest gun control laws, and the highest gun related crime rates. It is a good thing that all those good people who never do anything wrong can't buy guns and protect themselves from the bad. Just as it is a good thing that all those people who train hard and do their PT... will still do their PT, while the others will still slack off.

Punish the individual wrong doer, not the entire group. Guilt by association is not a reason but an excuse of tyrants.