The idea is that teams in mostly bot leagues can't finish really high in their league and also draft really well - as in real life, you get one or the other.
But this has a high risk of seriously damaging all the national teams of all the small countries in the world, plus it really takes away a lot of the fun for everyone in leagues with even one or two bots.
For example, what would you do in my situation: I know that in the last 3 drafts there have only been two players that have had (pretty) good base skills and very good potential, plus I know that there will be one bot this season. Unless the initial valuations are completely wrong, if the trend holds, the player (given there is one) who is far better than all the rest should have a much higher valuation then everybody else, and the bot will be sure to pick him up with the first pick. So, since I can pick up from the market a player that is worth pretty much what any other draftee is worth, outside of that single guy, why am I supposed to invest in the draft? And what if you wind up in a division with 2 or 3 bots?