On the one hand, it’s strange to assume that one of the tournament hosts will not play in it (if things go badly in the qualifying tournament), isn’t it? On the other hand, when the number of guaranteed places is large, it reduces the value and meaning of the qualifying tournaments, but FIFA and UEFA are in any case on the path of increasing the number of participants in the final tournaments, so they are not particularly worried about this.
It's all becoming more like a business industry to me instead of focusing on sports while business goes second in priority. I know that things like these are somehow cannot be avoided because money will always be there but for the sake of competition, they should look at this rule very closely mainly now that they are expanding the format because it's getting more and more unfair to the teams who got the talent but will have to go through the struggle because their countries aren't that rich to make a bid to host such event.