Roger, the Army has somewhat repaired that by bringing back the DIVARTYs (Division Artillery for those of you from Rio Linda) which provides more Colonel level commands. At one point there were only three Fires Brigades and three BCDs (Battlefield Coordination Detachments) for FA Colonels to command. With the DIVARTYs coming back that helps.
In the past couple of years FA Majors were selected for Lt. Col. below both Armor and Infantry. I (despite being a SAMS graduate) was one of those victims. Fortunately, I was a prior service and retired with 23 yrs active duty (32 total)
However the operational implications are still there. DIVARTYs do not have a GS battalion of thier own. Not even the MLRS battery of the J Series MTOE. So no ability to fight deep.
A fellow Artilleryman and college buddy had two highly successful tours in Iraq and Afghanistan, but had to retire as a LTC. He’s still bitter about being subordinated to those other branches, but he’s retired and double-dipping as an instructor at CGSC in DC. He was prior service as well, so it worked out OK.