How about when combined with the text from the Kalashtar racial substitution levels?
http://www.enworld.org/forum/4581998-post10.html
And the similar text for the Xeph racial substitution levels.
If it was merely text that wasn't removed then WotC had at least 2 other times (in subsequent products) where they could have done so and did not. So I fall back on the preponderance of evidence that a pp reserve is required to manifest a mindblade.
Also the "parenthetical" text is present in the SRD version and that means it is not considered "color" or "flavor" text since the SRD has that removed.
Yes, even with that language.
"This substitution feature replaces the standard soulknife's free Wild Talent feat. Since all Kalashtar gain power points for free, the character does not need this feat to matierialize his mind blade."
I'll assume Kalashtar are like Xephs:
Naturally Psionic: Xephs gain 1 bonus power point at 1st level. This benefit does not grant them the ability to manifest powers unless they gain that ability through another source, such as levels in a psionic class.
So Xephs and Kalashtar have power points.
The parenthetical says: "This class feature provides the character with the psionic power he needs to materialize his mind blade, if he has no power points otherwise" which seems to say that having power points outside of wild talent is an alternate possibility for having the psionic power needed to materialize a mindblade.
The racial substitution level seems to take advantage of that possibility and make it a reality.
This can be interpreted either way and not be logically incoherent. The psionic designation from wild talent could be irrelevant to powering the mindblade and it is only the retained power points that provide the power to manifest a mindblade. Alternately it could be that the class feature wild talent is all that is needed while having a different source of power points is an alternate method. Both are logically consistent with the wording RAW including these later written racial substitution levels.
However looking to outside sources and references provides more contrasts.
When things required a power reserve in 3.0 they said things like "The mind-blade can be used as long as the soulknife’s power point reserve is 1 or more." or "While the character retains 1 or more power points, his or her mind automatically generates a tangible field of force that provides a +4 armor bonus to AC."
Even in 3.5 when they require you to have power points they say it directly, not imply it indirectly "If you have 1 or more power points available, you can meditate to attempt to become psionically focused."
So instead of using explicit existing language which cannot be interpreted to not require a power point reserve the 3.5 soulknife uses ambiguous language that can reasonably be interpreted not to require a power point reserve.
The language "have power points
available" from the psionic focus section also sounds like a distinction from the "has no power points otherwise" language of the soulknife wild talent parenthetical which does not specify "power points
available".
I'd say that with the 3.0 power reserve language excised and the parenthetical being open to either interpretation but requiring an indirect implication using language dissimilar from the other examples of power reserve requirements the preponderance of the evidence is that the no power reserve interpretation is more likely correct.