Rotation get carried along after realize instances

One annoying thing that happens when I realize the instances is that the rotation gets lost int he way, there are some rotation axis that get preserved, like inclination, because of the positioning of the object, but the rotation along the direction of a curve, as an implicit thing it doesn't get preserved.

In that way, if we use Align Rotation to Vector to inclinate the curves after realized, and Curve to Mesh, we can see that curves rotate the axis-along-curve when they get inclined to align with the inclination, something that doesn't happen if we don't realize the curves before hand.

I'm not quite sure how to do it, but there is no way of doing it easily today, I already exhautively search for a solution and the current method I use is a massive workaround. I wished there were a way to preserve the rotational information after the realization so the rotation axis-along-curve direction doesn't get lost.

I'm attaching a link to a blend file demostrating the issue. Notice that when you change the value exposed in the modifier, the rotation changes depending on the direction the inclination goes, but when you mute the Realize Instances node, the rotation stays as it should, it does not get affected by the inclination. drive.google.com/drive/folders/1rqzjqpclVptMpP4xFAJbQeFqdJEICiyQ

In my personal project this realize instances is necessary for reasons not exposed in the file, not using a Realize instances is not an option. In these kind of situations, there is nothing that can be done without a massive workaround, and I'm here to sound the alarm that something needs to be done, Idk exactly waht, but I reckon that this rotation thing can't be lost after realizing the instances.