Thanks, I see their claim on page 23. However, they are on the optimistic side. ☺ They most definitely do not have a helipad, let alone a full heliport, which is why I cannot find them in the VFR manual (https://aim.rlp.cz/vfrmanual/actual/hel_1_cz.html).

From an OSM point of view, looking at the wiki it might be best to retag this as emergency=landing_site? (https://wiki.openstreetmap.org/wiki/Tag:emergency%3Dlanding_site)