It's ok, I'll explain nice and slow so that even you can follow the nuanced point I was making. I know reading comprehension and critical thinking aren't for everyone, which is ok. We all have our limits.
T4 is bad. By that I meant the overall state of it and its viability in 1v1 and 2v2. I never said the units themselves are worthless or even the problem per se.
I follow that up by going into detail about the specific units.
"Panzerwerfer is just woeful compared to other Allied rocket arty. Rockets take forever to land, and it's utterly inferior to either the Katyu or Caliope. "
I say the Werfer is bad by virtue of the performance of its Allied counter-parts.
"Brumbär would be a decent unit if it wasn't coupled with expensive costs. You can get two Ostwinds for the price of one Brum, and I don't see a single situation where a single Brum would be a better option than two Ostwinds. Especially because the Ostwind has a turret and can blitz."
I said the Brum is a decent unit, but the problem is it's cost and that two Ostwinds do the job better and are more flexible at the same time.
"Same with the Panther. It's performance isn't necessarily the issue. But the Panther is a pure AT unit (don't give me "But the MG1!111!1"), and for the price of one Panther I can almost get 3 Stugs. Are the StuGs reliable IS2 or ISU killers? No.
But then the Panther has its own issues (namely its slow ROF and miserable moving accuracy). Again I'd argue that, whatever I'm facing, those 2-3 Stugs will perform much better than a single Panther."
Again, same as above. It's not a bad unit. It's just not as good as what I can get for its price.
So an ELI5 just for you, so that you can comprehend:
T4. Useless because cost.
Werfer. Bad because Allied counterparts = better.
Brum. Decent, but not worth the cost. 2 Ostwinds better.
Panther. Decent. Not worth the cost. 2-3 Stugs do job better.
Should I make it simpler, or can you follow now?
I disagree with basically everything you wrote.
Panzerwerfer isn't worse than other rocket arty. It's actually one of the best rocket artillery units in the game. Not sure why you would think it's worse than LM or Katyusha. Calliope is better but also more expensive. Stuka is debatable because they function in different ways.
The 2x cheaper unit > 1 expensive unit argument is pathetic and doesn't say anything about how good the units are. Brummbär could do with a slight buff but 2 Ostwinds being better than one Brummbär has nothing to do with it. It's just like saying two P4s do more damage against infantry than a Tiger, therefore, the Tiger is bad. It makes no sense.
Panther is an excellent tank and in the best spot it has been in since I started playing this game in 2016.
So yeah. How this makes Ost T4 bad and useless (your words) is beyond me.