The vast majority of TLDs that are introduced fail very quickly (.name, .biz, .pro, a range of ccTLDs whose country's citizens opt for the 'big 3' - .com, .net and .org - regardless, etc)
All that'll happen here - IMO - is that a few of the bigger names will waste $185k on their unique TLDs, realise that their users get confused by them (never underestimate the ability of big companies to misunderstand it's users..) and either switch back or stick ridgidly to using them with no positive effect.
So yep, I'm not too concerned about this. ICANN aren't a great organisation, and they seem to mainly bring out new TLDs to get more money.
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