Yes, but if you say that you don't know why speculate like that?
Fact is, Adidas uses loads of the stuff in a (much) lower priced shoes, so it doesn't make sense.
The somewhat perplexing part is that I personally had that exchange with you at least two other times, and nothing seems to change. I also remember that at the second exchange which happened some time after the first, it was cleared that that poster was talking about the initial runs of Boost, when the stuff
might have been in more limited supply. Really, the market is swamped with shoes with generous amounts of Boost in them which sell for like half the price of SCB. Considering that Adidas seems to not view the tennis market like an afterthought like some other companies do, I hold it for highly unlikely that they would hurt their top of the line shoe, because they wanted to save on the stuff that is basically in all their lines.
BTW, the Stan Smiths, Superstars and the Sambas are also available with Boost, if one prefers that, so I don't think that you are correct on that either. I have the Smiths with Boost in my shoe closet.