No, he didn't. Infact, they set Bran up as bait with the entire plan hinging on that and prepared absolutely nothing to actually kill the NK. Theon's suicide charge proves that they knew nothing. Also Arya had her hands full in the tower defense and library sneaking which would have been way too risky if the initial plan was her guarding Bran.
Ffs, she was one second from death before Beric saved her. So either the plotters are retarded or the narrating is dreadful. Cherry on top is that she shits herself against some wight in the library only to fly past half a dozen white walkers like naruto.
You aren't even plebs, you watched lots of good television. It boggles my mind why you treat that cheap lackluster dogshit as some benchmark. It 'wasn't even technically well done at the very least, with shitty lighting, low effort sets and costumes etc. Somebody even said it was comparable to BoB Bastogne episode wtf your tongue shall fall off for uttering these words