God forbid obers are not brainless move and you actually have to think if you want them now!
They have high reinforcement cost, because they are most durable in game long range infantry. Also their reinforce cost matches perfectly universal reinforce cost formula(reinforcing from 1 entity to full squad= ~40% of squad value), so there is no problem here.
Also of course M1919 paras will beat them. What did you expected if you put 380mp+120mun vs 400mp unit? The resource difference alone makes it quite clear which one should end on top. Even with 60 muni LMG it makes perfect sense from balance perspective for them to loose a fight on equal footing.
Now, lets use another argument axis players used recently:
You pay additional costs for UTILITY as you can place BOOBY TRAPS with them without the need for doctrine.
Now, lets do some basic math:
150 is 37% of 400.
5x 28 is 140 and 140 is 37% of 380.
OH MY GOD! THE UNITS REINFORCE FOR EXACTLY HOW MUCH THEY SHOULD HAVE! IN FACT IT MAKES SENSE FOR OBERS TO REINFORCE FOR SLIGHTLY MORE THEN NOW AS WELL AS PARAS!
BURN THIS MATHEMATICAL WHICH FOR PROVING THAT EVERYTHING IS FINE!
Why do I need to play them when I have their stats right in front of me which describes them 100 %?
Because you have no slightest clue on how to read them correctly.
You see forest but not trees.