We see, higher scatter means the gun will miss infantry more often. While the HP means it only sustains 4 shots vs 5 on the t34/85 & ez8. Low penetration means also that it has a hard time penetrating medium tanks (calliopes included). Compared with Armour of the Easy8 there is hardly a difference, especially when you keep in mind the that the Easy8 is considered as the best medium generalist tank in game.
Again it's just stating objective stats and comparing them. OKW P4 costs more, but has worse stats.
Edited: some wrong stats
Can you like, not defend OKW at every chance for once?
Can it just be reduced to 125 fuel and be a normal vet 0 P4? Paying only 10 extra fuel for the vet 2 armour bonus is shifty now. Ofc it would require a minor rework of vet bonuses however.
If you read my posts you noticed that I talk about vehicles that come out as your first unit. Do you need snares for a Kübel? Yet a M3 in your base can wipe squads.
So you want AT snares and schreks? Yeah hell no. It's one or the other.