Yes, that is a legal reality - if Roe v. Wade is overturned, abortion becomes a state issue. You can complain about that being true, but you cannot argue that it is not a fact. Now, if you don't like that fact, you can join Governor Perry is supporting a Human Life Amendment to the Constitution.
IMHO Perry is pro-life, but that position is an attempt on his part to "reposition" himself for a presidential run, by executing his version of a straddle.
It's his way of saying, "I don't think abortion should be part of my campaign, part of presidential politics, so if you're pro-abort, please don't vote against me on that account."
He's "reaching out" to all the Kay Bailey Hutchisons of the world, IOW, esp. those in the GOP who are turned off by Michele Bachmann and Sarah Palin -- the Kathleen Parkers and Peggy Noonans of GOPdom and the Hillary supporters of gender-femdom.