I have noticed an increased fermentability of the wort with no loss of body when doing a Hochkurz step mash. Something about the mashout making a difference there - Head retention is greater, if nothing else. I also will do a continuously increasing slide through the beta to alpha to mash out temperatures over an hour and that has resulted in similar results. I appreciate that maybe it is just in my head (confirmation bias), but on my process (HERMS) it seems to produce a good result on my lighter lagers and palest ales (10 gallon batches).
Try it and if it doesn’t work better for you, then certainly dump it as a process in favor of a simpler and equally good result. In the end it is just a hobby and everyone should experiment with their respective systems to find out what they most enjoy.
For what it is worth, when I make big ales or dark beers, I usually go back to 5 gallons and then I will opt for the simple batch sparge (BIAB) in my cooler, rather than breaking out the HERMS set up.