Blindsense not being Blindsight definitely feels like an artifact of older design (much in the way Feral Senses was), to the extent that last time I saw it come up the DM with the high level rogue character assumed it simply was Blindsight - understandably so.

Houserule wise I also gave Slippery Mind Cha-saves and made Stroke of Luck turn an attack/ability check dice into a 20 (crit on demand) and it refreshes whenever you naturally crit in addition to its rest-based refresh.