Not all Wayspots appear in all of the games, and this is due to each game’s density/inclusion rule. Like noted, PoGo uses S2 cells to determine which Wayspots becoming stops/gyms, while Ingress uses a 20 m rule.
Also as noted, “Javor Červený” is in the same L17 S2 cell as “GLEDITSIA TRIACANTHOS," which is just to the northeast of “Javor Červený” in the screenshot from the Ingress Intel map I posted; you can see the outline of the L17 S2 cell in this screenshot. Because “GLEDITSIA TRIACANTHOS" already exists in this cell, it’s the only Wayspot that will show up in PoGo in this L17 S2 cell.
I provided the link that explains how S2 cells work in PoGo, and it’s highly recommended to read up on that. I can also say that the other L17 S2 cells around this one already have Wayspots, so even if Javor Červený was moved west into th next S2 cell, it still won’t show up in PoGo.
Unfortunatley, we don’t always get our approved Wayspots in-game, but they are added to the database map, and Javor Červený will appear in Ingress as a portal, so it’s in another game. I’ve had many Wayspots that don’t show up in PoGo, but do in Ingress, while I’ve had others approved that don’t show up in any game, but could be used by developers that do use the map.
Essentially, we’re building a map of real-life POIs with Wayfarer, and there’s never a guarantee that any of our approved Wayspots will be added to the games.
S2 cells aren’t on the nomination map, as this could cause some to manipulate the game board, which is against the Terms of Service and considered abuse; we all agree to the ToS, so it’s not up to us to determine game play locations.
Also, S2 cells aren’t used by all of the games, so they don’t matter when nominating in Ingress, but the Ingress map doesn’t show distances, so you don’t know if your nomination is within 20 m of another existing Wayspot.