Repositioning text in a document

Any ideas why this script isn't working as desired? I'm trying to write a simple script that moves any text boxes / objects (grouping them first if there's multiple) to an exact x and y position on the page. 

So if the current position of the text box is .5 inches and 1.5 inches, and I want to just move all of the text boxes down and inch so its new position is .5 inches and 2.5 inches, why is this moving the text box to a weird position when I type in .5 and 2.5 into the dialog box?

// @targetengine "session"

function repositionTextFrames() {
    // Check if there's an active document
    if (app.documents.length === 0) {
        alert("Please open a document first.");
        return;
    }

    var myDoc = app.activeDocument;
    
    // Create dialog box
    var myDialog = new Window("dialog", "Reposition Text Frames");
    myDialog.orientation = "column";
    
    // Create input groups
    var coordGroup = myDialog.add("group");
    coordGroup.orientation = "row";
    
    // X coordinate input
    coordGroup.add("statictext", undefined, "X Position (inches):");
    var xInput = coordGroup.add("edittext", undefined, "0");
    xInput.characters = 6;
    
    // Y coordinate input
    coordGroup.add("statictext", undefined, "Y Position (inches):");
    var yInput = coordGroup.add("edittext", undefined, "0");
    yInput.characters = 6;
    
    // Add buttons
    var buttonGroup = myDialog.add("group");
    buttonGroup.orientation = "row";
    var okButton = buttonGroup.add("button", undefined, "OK");
    var cancelButton = buttonGroup.add("button", undefined, "Cancel");
    
    // Show dialog
    if (myDialog.show() == 1) {
        // Convert inches to points (1 inch = 72 points)
        var xPos = parseFloat(xInput.text) * 72;
        var yPos = parseFloat(yInput.text) * 72;
        
        // Process each page
        for (var i = 0; i < myDoc.pages.length; i++) {
            var currentPage = myDoc.pages[i];
            var textFrames = [];
            
            // Collect all text frames on the page
            for (var j = 0; j < currentPage.textFrames.length; j++) {
                textFrames.push(currentPage.textFrames[j]);
            }
            
            // Skip if no text frames found
            if (textFrames.length === 0) continue;
            
            // Group text frames if multiple exist
            var textGroup;
            if (textFrames.length > 1) {
                textGroup = currentPage.groups.add(textFrames);
            } else {
                textGroup = textFrames[0];
            }
            
            try {
                // Get the current position of the text group
                var bounds = textGroup.geometricBounds;
                
                // Calculate the target position relative to the page margins
                var targetX = currentPage.marginPreferences.left + xPos;
                var targetY = currentPage.marginPreferences.top + yPos;
                
                // Calculate the amount we need to move the text group
                var deltaX = targetX - bounds[1];
                var deltaY = targetY - bounds[0];
                
                // Move the text group
                textGroup.move(undefined, [deltaX, deltaY]);
                
            } catch (e) {
                alert("Error repositioning text on page " + (i + 1) + ": " + e);
            }
        }
        
        alert("Text repositioning complete!");
    }
}

// Run the script
repositionTextFrames();