Well, most people tend to like women with big boobs who are also attractive to look at, so there's nothing wrong with preferring both and stating as much. The BEA is not just about "shockingly disproportionate boobs" -- it's about a lot of other aspects related to that. Obviously this woman's face is edited out, but based on the look of the rest of her, I think she would really only appeal to true big boob purists, i.e. those who only care about the size of them, and not what they look like, or what the woman to whom they are attached looks like. She seems considerably older than 40's to me and I also happen to agree that her overall appearance is really not very appealing, but that's just my opinion.
What I do in such cases, if the first thing(s) that caught my eye were her boobs, I'd give her boobs a second look -- to confirm that it's not a case of her having a large stomach, or a 'trick of the light' or my sometimes-crappy vision (my contacts can fog over or gunk over leaving me seeing things that just ain't there). But if I realize she really is that big, and NOT attractive, then I tend not to look further, at least after a little bit of time just admiring the hugeness of her boobs, even if she isn't that attractive.
What I am questioning is the idea that upon realizing she's not attractive to him, he wouldn't look any further at all? After all, just the rarity of truly mammoth boobs, even on an non-attractive (as opposed to a truly unattractive or even ugly woman) wouldn't be worth a second look? Just to admire at least the enormity of such bosoms? I have to qualify my statement because I have seen enormous boobs on women whom I considered repellent (due to extreme age, or extreme obesity, or simply havinig the misfortune to carry a truly ugly face along with huge hooters); and I find myself still looking, but rather despondently, fervently wishing that such huge ones should have been on a much more attractive woman. Or am I the only one who does this, and does that make me one of "those who only care about the size of them, and not what they look like, or what the woman to whom they are attached looks like"? I don't think I am a boob purist. I really do care what the woman looks like, and how attractive she is, how she carries herself, if she also has nice hair/legs/face/backside.
You are telling me that very few people on this site would give no further attention, even in a wistful way, and just to admire the simple ampleness of the woman's bosom, even if she isn't that person's ideal? I find that very difficult to believe.