I think its the one you're referencing, but my thought was more on the fact that they apparently had an idea for a dragon rider back when they were doing zero who would've been standing in in place of Caster's cthulu horror. So while Jesus would be a dragon rider, I think they had different ideas of who they would use before him.
I can't tell if you're just affronted or can't actually decipher what they said (I had to take a second pass to get it) so please excuse me if I come across dickish for explaining, but I think what they're saying is that designing a Grand Saber without Excalibur at this point is just doing it for the sake of doing it than any legit reason.