Why are some people in the Japanese self learning community so down on Heisig?

It's hard to believe some people actually go around saying RTK is useless, when in fact the most daunting thing that discourages the vast majority of those interested in Japanese from studying it is actually kanji.

Excuse me for thinking the massive amount of new words that'll show up in native material that have nothing to do with my mother tongue or English is actually enough of a burden. Immersion is more enjoyable when you don't have to worry about the shape of a gazillion new kanji and learn the more unusual ones much faster? Who'd ever think that? Such a useless skill to develop!