I never claimed anything remotely close to "mastering" anything, pls once more tone down the personal comments.
Well, you didn't say it directly but the way you insist that the combo is troublesome and constantly suggest pp to try it leaving a very strong impression of:
A. You encounter it a lot.
B. You play with it and success a lot.
To the point that you know exactly what will happen. Still, neither above seem to be the case.
The reason why you doesnt have many experience with this tactic mentioned in #38 is also questionable, event if you donesnt like AVRE/LM, there are still a.section, which you describe as a strong combo, too, do you use them ?
Second question, why now? Like it been many month since RRo.e has been rework, if the UC drop is effective as you said, why aren't anyone complain about it already ? Again, The player base various at skill lever, but arent dumbs, if there are thing work and there are think not work, pp will find out in no time.
Tight role is playing 1sv1, transporting troops works much better in larger modes and maps where it enables to concentrate units faster.
The lane map and troop concentration in big mode are the thing which make UC drop troop risky, you have to dive strait in since there are less flank routs and there are more thing shooting at you. There are many things can go wrong, for example: you arrive a bit late and the enemy have engought muni for faust, you encounter 2x mg42, your enemy's teammate show up, you encounter dual kubels, etc. No matter how you describe, committing 2 out of 3 of your fist unit in such a move will always be a gamble.
Edit: Add some example of how an UC drop can go wrong in 4v4.