I don't think that's the case for a few reasons:

1) Alejandro didn't get the eye-ooze ever until he was right in the act of calming Maya down, which makes him immune if nothing else.
2) See above, with the quick eye-darkening thing as he, what, "absorbed" her power, I guess?
3) They're twins. Twins are always "special." Even if special = pathetic. ;)