This, becuase
Your basic argument is its better to be a T/M than a A/m. For a t/m 5 raw tpa some TD say 10% and 20% wt will likely "slow down" a rogue and as the rogue fails due to auto catch and what not. 5 raw tpa may even be "enough" tpa to actually protect you (mystic 1-2 will likely "Fall" but mystic 3-4+ will be defensive enough and all mystics can offensively op)
However for a A/M even 2 tpa isn't really sacrificing anything. Because their goal is to take and hold econ while msing->fbing. the difference between say 2 tpa and 5 tpa isnt "enough" to do ANY offensive opp once u grow 20-30% and fail away 1 raw tpa because u cant run max TD.
For your typical A/m your looking at 36 hours into war on (2/1.3)=1.5 raw tpa+30% wt
Vrs
((5-1)/1.3)=3 raw tpa and no TD.
That 3 raw tpa isnt going to be enough to do ANY offensive ops since u have no TD. And even if u have TD its not going to be doing a ton of damage. Couple that with the fact that if u wanted to be running TD the whole time you likely had to avoid stables/tg/hospitals/rax to fit it into your build and your looking at trading a little late war NS and early war ops for what would likely translate into 50%+ more effective military (raw military+military oriented build) not the 10-15% you were guessing.