eh..a bit of a losing proposition. He shows up, he'd be accused of doing a stunt and making a mockery of the parents' pain. He'd be shouted out of the place more than likely. I mean, the GQP put themselves in that position so they've got no one else to blame but themselves.
Actually it is an opportunity for him to show up, say kinds words, and present himself as being caring & comforting. For comparison purposes -- this is something that even DeSantis could pull off. DeSantis did fairly well with the Florida condo collapse situation. Of course, you will take criticism from the opposing party or from some individuals trying to claim he is merely trying to do a "stunt" to get some limelight. However that's the nature of being a politician.
For the most part we have not heard crap from Abbott about the Texas school shooting ever since is initial press conference after which it became clear he was misinformed about the actual narrative & events (and note I do not blame him for this). But he needs to somehow properly address what is going on now -- and take leadership into a state investigation (which should come from the executive branch -- not the legislature) on the sequence of events that led to this failure in the response.