That's not right, whenever we are watching the world cup games we just watch the games because we feel we like the games not because our country is playing in the world cup other wise in the final match of any world cup we had only people in two countries watching the games and others will ignore the game just because their country is not playing there which is not right.
All of you need to remember one thing. World Cup matches are never played in empty stadiums. The demand for tickets are 10 times or 20 times the actual supply. During the 2022 World Cup, Qataris reserved a large fraction of tickets to themselves and made massive profits by selling these tickets to fans at exorbitant prices. So the argument that fans from the host nation may not watch the tournament in case their team is not there doesn't stand. If they don't watch, then fans from other countries will be ready to purchase the tickets. IMO, host nations should not be provided with automatic qualification. They need to qualify through the qualifier tournaments, just like the other teams.
Because this is a big tournament, there is never a doubt that there will be not fewer fans and that is also one of the reasons for FIFA to increase the number of participants because it means more money will be circulating throughout the World Cup. Conditions like any of the hosts will not reduce the interest of spectators to come directly to the stadium and watch the match even though there is a possibility that the match will be boring.
If regulations appear, the host country will not automatically become a participant because they still pass the qualifications. There may be less interest from the country that organizes it, because apart from economic reasons, one of the reasons why countries are interested in becoming an organizer is because they get the privilege of their national team automatically playing, and the rules of the organizing country automatically playing out like a lucrative deal for FIFA and that country.