There could be a number of issues at play here: If your in room response is poor for some reason, then maybe the effect of BEQ would be weakened? I know it's maybe tempting, but just adding more bass as a house curve before BEQ might be a symptom, but not the cause.
FWIW this is my response from step 1, which is the setting used to merge my BEQ files. I used the RED trace as the base (the GREEN one was the result of eqing both subs separately). It's pretty much flat until it gets to 110Hz:
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I know that I had watched a couple of episodes of Altered Carbon after my last calibration and despite it all sounding great on films/concert discs this program didn't. I had initially put it down to it being Netflix and maybe a result of the App in my player was limiting bass. However, once I loaded the BEQ file for this series, it then sounded just like most 'good' films do. Not over the top, but it didn't sound like I was watching on a little soundbar system.
I'll need to revisit some other discs to try some comparisons (I have Oblivion in 4K which is a bit 'weak' compared to the BluRay version I have), but hopefully I won't need to fiddle any more.