The short answers to this question are "kind of" and "yes". tldr coming up
As an aside, on block, d1 xx SB can be jumped out of in any direction, but on hit it can only be forward jumped, ie crossing you up.
at point blank range, d1 xx SB has 8 or 9 frames of recovery which means that with frame perfect execution many characters can get their jabs or fast advancing specials (FAS) off. FAS will normally punish you (especially reptile dash) but getting jabs off is not so easy. My room mate plays Sektor and even with Sektor's 6 frame jab and prior knowledge of this exact opening, he only manages to punish me %20 of the time. The philosophy of d1 xx SB is that it creates a mind game against high energy opponents that are eager to press buttons. If you find yourself up against an opponent like this, d1 xx SB used as part of your pressure will normally have a high degree of success. Once they learn to respect it, it opens up throw/cross up mix ups. If you're facing down a very cautious or deliberate opponent, you really want to avoid d1 xx SB as pressure, even though it's very tempting. In that situation it will almost alwasy get blocked, they will see the opening and pressure will be reversed. This is no good.
Now, something interesting happens when you examine d4 xx SB.
as another aside, the SB of d4 xx SB is completely unavoidable on hit or block.
the special cancel out of d4 is ridiculously fast, making d4 xx SB pretty sudden and it can catch people off guard. Also, it's much more viable as a pressure tool. At max range, it's nearly impossible to even reverse pressure, let alone punish. This is because of the extra distance. You're way out of range of most normals and with the additional travel time of SB the disadvantage is reduced to, like, -3 or 4. It's also a really good way to bait jump ins, since it's likely they'll jump at you after 1 or 2 of these.