Seeing as he is specifically talking about bass here, then, no, the M126be will not share those specific characteristics. And this is important when asking if they are worth it. Clarity at high levels over the M16s: sure--but whether you'll benefit from it depends on your room size and you certainly won't have the same bass. Clarity over the M106s: after looking at the distortion measurements of the latter I don't see potential audible benefits. I would expect the M126be to be easier to drive, however.
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Amir himself has stated that he doesn't believe in spending that much money on bookshelves. I agree. These in particular need subs. At their price what you want is what is quoted, which you will get with floor-standers or by adding some subs. I own M16s, M106s, and F226Bes. I could be happy with the M16s properly set-up in an appropriate room as end-game. The M16s are special and offer more bass than the other two and take to EQ very well. (See my posts and measurements for evidence. I can get down to 30Hz. And to be fair, I think that they require EQ as I don't like that bass hump.) For anyone thinking of upgrading to the M126Bes, I'd recommend seeing what EQ can do for you first (and to consider the loss of bass). Having a speaker tuned to your room is something to experience.