I'm not saying a abandoned KT is equal to a dropped PTRS
What I am saying is for the average game, dropped brens/MG42s/shreks are way way more common and effect the game more than the odd chance of a tank abandoning in a secluded area where it can be repaired
Obviously not all weapon drops and vehicles are worth the same, a Obers MG dropped is worth it's weight in gold compared to a abandoned kubel in easy to destroy location. Just today I saw a tightrope game where he had something like 3 stolen Vickers K on his vet Jaegers... That's equal to a vehicle in power to me.
But my point is it's RNG effecting the game
Then you'd also need to advocate to completely abandon all tournaments in CoH2 because each hit/miss calculation is done on RNG basis.
Apart from that it is all statistics: Single dropped weapons are not a huge game changer. If you have multiple drops in the same game (so many incidents that it actually heavily affects the game's outcome), chances are low that it is always the same player drawing the short end of the stick. At this point we won't really see it in a tournament. If drops are distributed more equally among players, then it evens out more over the game OR it puts the player at the advantage that actually micros better to pick them up.
Vehicle abandons statistically rarely happen multiple times per game in 1v1s .Even if a game burns through 10 vehicles (which is already an the higher end of the spectrum I would say), the chance of getting one abandon is 7,5%. The chance for only one vehicle being abandoned out of 10 is 31,5%, so single abandons happen much more frequently.
If 5 vehicles die (very realistic in my opinion if not even slightly underestimating the number), the chance for one abandon is still 20,3%, so we can expect (at least) one abandon in every 5-game series.
An abandoned vehicle though heavily swings the game, meaning in EVERY 5 game series, 1 game might partially decided by RNG.
Obviously there are assumptions like every abandon is not destroyable afterwards etc, but that is just the statistical basis.