I don't understand what it means about Frontcourt and the Backcourt of both conferences.
Based on this site, Alex Caruso has a million votes in Backcourt of the Western Conference which is really surprising since he has more votes than other players that are also doing well in the season. He's not being talked about that much but this proves how great of a player he is if these votes are accurate.
IIRC, the top 3 players from the frontcourt list and the top 2 from the guards' list will play in starting lineup, and I think that information from your link is out of date because it's voting results for the previous all-star weekend.