Yup. Modern (generally western) conceits of how war should be waged and how resources (such as lives and manpower) should be used.
Take what you put here-
I was talking war tactics and use of mages in combat, and the logistics using mages in battle. Simply put, what I was talking about is that there aren't enough mages to build an army of them, or to use them as shock troops or canon fodder, but acting in support of a regiment or as part of a specialized ops team can be a huge advantage to any country. A good healer in the army will reduce deaths by infection or injury by a substantial amount. A mage skilled in entropy can have the enemy missing with nearly every swing, suffering waking nightmares and illusions, or forced into slumber, thus making them easier to be dispatched or captured. Mages skilled in primal skills deal so much damage from a distance that any follow up combat is much simpler for the soldiers on the front lines.
This is, in no way, reflective of any sort of universally agreed upon military doctrine or tactics. Ignoring the exaggerations and questionable gameplay-as-lore argument, every argument you make can be applied in favor of high-impact/high-attrition roles and non-support functions- starting from 'can be a huge advantage to any country' to 'reduce deaths.'
Mages are obviously force-multipliers, but force multiplication doesn't exist solely (or even most effectively) in the rear- which is where your argument, centered around low-risk support roles with minimal attrition, focuses on. Not all force multipliers are equal, nor are all force multipliers equally important. A single small force multiplier in a decisive place and time can outweight far larger force multipliers in non-decisive places and times. What you think is the most relevant and effective place is a matter of doctrine, which itself derives from culture.
To make an example for how doctrine reflects morality and culture, take a hypothetical training scenario-
You are Blue Force, defending the decisive terrain from Red Force in the decisive battle of the war. You must hold the line at all cost- failure on any one front means the end of the war. Both forces are roughly equal in size with ten units: 2 on each of three fronts, and four in the rear to serve as reinforcements.
On the north front, Red Force had a minor victory, making modest gains but at a cost of heavy casualties. The current allocation of forces is approximately 1.5 to .9 in favor of Blue. Your commander believes he can hold the current enemy without any further losses.
On the southwest front, Red and Blue were at a stalemate, with no meaningful territory lost or gained. Heavy fighting on both sides means the current B:R ratio is 0.5:0.8 in Red's favor. Your commander is begging for reinforcments to recoup heavy losses.
On the eastern front, Blue Force led a stunning defensive operation and won a major victory. Not only did Blue Forces come out ahead in a ratio of 1.5:0.6, but terrain was gained. Your commander requests reinforcements to route the remaining enemy.
It is now time to allocate the reserve units. Both sides can allocate their four reserve units to any front they want. Reserve units can not be partially allocated (you can't commit 1.5 units), and leaving any unit in reserve provides no future benefit.
How do you allocate of forces? What is pragmatic for both you, and Red Force?
(Red Force has a fixed answer based on Soviet doctrine. I will not change the answer regardless of what you offer.)
Because of their numbers and the amount of time it takes to train mages, I was commenting that they cannot be capable or highly utilized shock troops at all. But the army that has the most, well-trained mages will always have the advantage because of their versatility and utility.
The first is an opinion of merit masquerading as a fact, reliant on acceptance of your personal evaluation of how mages should be used. The second is also an opinion masquerading as a fact by ignorring all other contexts that determine what gives a military force an advantage.
Modern morality has nothing to do with being pragmatic in the use of mages, so I have no idea where you even got the notion that was what I was talking about.
What you consider pragmatic is a reflection of morality. There's nothing bad about that, so long as you remember that pragmatism is in many respects a cultural concept reflecting subjective evaluations and standards.