I don't disagree as such, but in a sense the discontinuity and paradoxes in her invulnerabilty are unique to her and entirely in line with her entire published history. When i first found Wonder Woman in those late 1970s issues here was a woman who would tears steel doors apart with he bare hands, heft space Shuttles on her back, tackle Kryptonians, yet regularly be knocked out by a fall to her head or some unseen attacker walloping her with a cosh!
Even then it made little sense, but I do find myself appreciating Wonder Woman these last months as by restating her relative vulnerabilities Greg Rucka and Shea Fontana are not only staying true to her lenghty history but presenting a top-tier character who does have defined limitations and hasn't been allowed to run away with herself to becomes something so eye-wateringly overpowering as to be be untouchable today. I enjoy Jason Aaron's work on The Mighty Thor for instance, but here is the example of a character allowed to become so overpowering she/he can't be set in any earthly context anymore... the challenges have to be found in the land of fairies and Gods. Which works certainly, but like most comicbook characters Thor does have to have a foot on the earth and be able do normal things on occasion with relatively normal problems and relatively down to earth opponents.
I makes the case then that Wonder Woman is in a good position at the moment for these reasons. It has been rather nice to see a topline Superhero like this who doesn't automatically overpower whatever earthly situation the writer sets her in.
It fits into what was for a long time her main weakness, as she is durable overall to take blows from Zod/DD types, but also can be cut and pierced thru by rteally sharp/durable, and fast moving things such as arrows and bullets!
She is bullet resistant, not proof, and she deflects probably that they might being like big bees stings to her, not welling severe, but hurt!