With normal dice (not Low Luck) it’s impractical to just “strafe” Ukraine because of the large variance - and you all are right - the risk of “too good dice” and leaving tanks stranded against counterattack. Better go to the end, kill the fighter, take the 3 IPC. German T1 counterattack may be limited and/or exposing their tanks too, due to lack of fighters (at most 1 after pressing Med and Egypt missions).
With the best forces available there:
RUS 3i,1a,3t,2f = 21 firepower, or 3.5 killed on average. May kill an arty, is it worth that ? If it kills the tank, then it’s “too close” to that “too good”.
GER 3i,1a,1t,1f = 15 firepower, or 2.5 killed on average
And if Russians send less, say one tank less, then it’s 18:15, too ‘fair’ attrition. Germany may like that ;-) Say it goes 3:3 in the first round, then what ? To stay one more round is “too good”, to withdraw is just equal attrition.
On the other hand, with Low Luck I send 3i,1a,2t,2f (one tank less, sent to WRU instead) with good chances to gain it with 2arm left.