I mean, I prefer that they made HotS as it is instead of a complete clone of other MOBAS. Biggest reason why I play it is because it's shorter more intense matches. I stopped playing dota2 after 2k hours just because I get bored during the match, they are so long and sometimes you aren't doing much except trying to get things to happen.
I'm honestly surprised that they supported the ESport scene so long as they did since everyone knew it wouldn't be as competitive. Which is ok.
Not really sure what the point is though since blizzard has been known since a long time that their games are actually casual friendly, more so than hardcore. People tend to go hardcore with the games, which they still do with wow, but the base is still very casual. Deviating from that norm wouldn't be blizzard.