Strength and resistance are two different factor.
Not necessarily a strong man has more stamina.
Fully agree with you here, DFA. Only thing is if one has trained for strength, they are generally more fit, even from a cardiovascular standpoint than a sedentary person.
And the other thing why some posters wish to see strength more involved in Endurance is the simple math of it in HM terms.
As a for instance:
Take Big Abe and Medium Bob (A & B).
Abe is very large, 220 pounds, and gets a +4 on strength. Bob gets no adds for strength as he weighs 150 pounds. Both have average strength for size, Bob has a 15 strength
Because of Bob's size, his armour weighs 1.2 times the Norm. If using heavy weapons, the 1.2 roughly corresponds.
Both have Fatigue rates and will power of 10.5, making Bobs Endurance 11, and Abe's Endurance 12.
Lets say they have a base load with armour an weapons of 70 pounds. Abe's load due to size is 84.
They now have the following fatigue and Encumberance:
Abe: 84/12 = 7, 14 encumberance, 7 fatigue.
Bob: 70/11 = 12 encumberane, 6 fatigue.
Bob is penalized because Strength factors in .33 on End, though his size causes the load to increase by 1.2
If we calcualte Endurance as (Str+Str+Wp+Ft)/4, Bob's End is now a 13, and his Load and Fatigue is now equal to Bob's, i.e. 12 Encumberance, 6 fatigue.
There would be a more complicated way to factor strength inot the equation, Maybe (Str+Str+Wp)/3 to factor merely the encumberance (We can call this carrying capacity), and take a fatigue stat of (Ft+Ft+Wp), and divide this by the fatigue calcualted above, and this number is how many rounds go by before one accrues a fatigue level.
For instance - Abe has a CC of 15+15+11/3 = 14.
His load is 84/14 = 6, for an encumberance of 12.
His fatigue is 11+11+10 = 32
Fatigue (32) divided by load (6) = 5, so every 5 rounds he accumulates one fatigue level, or 5 points of fatigue.
With a Fatigue of 18, he goes 8 rounds before accumulating a level of fatigue.
This differentiates between strength a fatigue better, but is a bit too complicated for my tastes.