The use of overhands as nipping structures, is a quite challenging endeavour, but not a completely impractical approach, if you ask me.
As you correctly point out, if the recipe is good enough to break overhand's vice function, we might exploit such topologies to develop non-PET, TIB eyeknots, like the one presented here.
However, it remains to be seen, if this proposed closed form topology may or may not induce any jamming.
It is known, that nothing can escape from a black hole, but your depicted small interstice, provides me with an access point, where i can interface with the nub and put the wheels in motion, in order to override the black hole

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Verily, we could get back in the comfort bowline zone, by pulling the on-going eye leg continuation (see image), where the black hole eye collapses, and grants its place to your wheel house bowline, with this simple and easy transformation.
It's good that you have already posted the TIB process so as to work with some further combinations.
Ps: The quasi bowline, appears to be a portuguese 1051 variant.