Really, LeIG/Stuka means "only LeIG"? or is it a case of specifically ignoring the stronger artillery, the stuka? Stop cherry picking word.
So then you mean they must be together, where then the price of LeIG/Stuka > Sexton. Therefore they should be stronger than the sexton. As it already is.
The OKW factually already have map hack + heavy artillery in the game. Stop using the axis gear as the hard limit of what the allies can do.
By this logic the KT because of its price was more than fine as a heavy and now should be buffed IMMENSLY. Instead though allies cried because they couldn't solo a KT with a single TD.
You seem to really miss the point here.
OKWS IS COUNTERABLE WITHOUT MASSIVE PUSHES, SEXTON + VALTENTINE IS NOT.
The sexton still have the weakest shell of the four howitzers and will likely remain so. The valentine is more expensive than the IR HT and will likely remain so. Is the literal Artillery doctrine not suppose to have good artillery? it's not even up to the standard of the other three howitzer. All this discussion is about what it could become.
As
PREVIOUSLY STATED, you can make UKF arty better without creating more AIDS doctrines. If you cannot understand that then I cannot help you.