Meh. They are just transferring all the heroes from dota 1. I think it is easier to learn how to play dota through lol. dota 2 can be very harsh on new players. also it takes some time for people to learn how to play. better get ready to lose first 100 games
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You have to learn all the paths you can use to run away from your team mates, manage your gold carefully, and learn how to deny creeps.
Both games are different though they are in the same genre. Unlike lol, only a few heroes have escape abilities so positioning yourself is important. Also, losing your buildings will cost you more unlike lol since buildings do not re-spawn.
Also, you can stack creep camps for your carries to farm. I don't do it myself because I am lazy