Given how well this module seemed to sell and the fact that a lot of folks forked $100 just for a purple version of it, I'm going to guess your letter came off as random feedback from some lone nut outlier.
They might silently rev it with some improvements, like Fryette did the Deliverance though if they get enough constructive criticism here on the net, though; so I guess there is always hope!
FWIW, I don't think it is horrible. The problem is it's not an SLO module, really. It's some other thing. It's definitely not my least favorite module and tweaked for lower gain it gets closer to the SLO.