Confused about Sabal yapa cold tolerance

[idontknowhatnametuse]

I was in google maps some weeks ago and found what seems to be the only Sabal yapa specimen (Besides the ones that I have and the ones I have gifted to locals) living in the state of Nuevo León in northeastern Mexico. Apparently it survived the 2021 freeze. The smaller palms beside this one are Thrinax radiata, so I assume that they brought these palms directly from the Yucatan peninsula and they weren't bought in a nursery, I've never seen nurseries here selling Sabal yapa but they do sell Thrinax radiata very often.

In the 2021 freeze it should have faced around -2°C to -4°C. Many people in the forum say this is a tender species but a lot of people don't know how to difference Sabal yapa and Sabal mauritiiformis and I assume that brings more confusion. My Sabal yapa that I sprouted from seed and brought them from Quintana Roo don't seem to be bothered by the cold, never seen cold damage on them. In 2023 they stayed in the 3rd floor of my house completely exposed and it was around 3°C that day but they never got damaged and they kept growing. I also gifted two of my Sabal yapa's; one was given to a gardener that I've known all my life and the gardener sold it to a lady and the lady planted it in a park, he said that the palm had doubled in size very quickly and was no longer struggling to grow due to lack of space. The other one was gifted to a lady that is a friend of my mom and she says it's doing fine though she hasn't planted it in the ground yet.

Here is the palm in question:

https://www.google.com/maps/@25.7345024,-100.3925779,3a,24.4y,349.21h,85.27t/data=!3m7!1e1!3m5!1sLTct5hEOaOeN9Lb9eZC_jw!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D4.729849313079853%26panoid%3DLTct5hEOaOeN9Lb9eZC_jw%26yaw%3D349.2129568770232!7i16384!8i8192?entry=ttu&g_ep=EgoyMDI0MTIxMS4wIKXMDSoASAFQAw%3D%3D