KeimaSideConnection/Similar shape in ear-reddening game

Patrick Traill: What about the similar shape of move 137 in the ear-reddening game, as below? Is this a (more or less) common way of connecting, or does it only work because of something about the white stones below?

N.B. This probably belongs on a page of its own, if there is none yet.

Ear-reddening game, move 137  

This is the same dog-leg shape, but out in the middle of the board. There is no comment on this move in Invincible, which calls “the second brilliant move adjacent to the tengen” (the first being the ear-reddening move itself, ).