This is not true,
It is true because your logic is completely flawed. We only take 5% from the prize pool so everyone gets the other 95%. The time weight multiplier is irrelevant to the house edge.
because bettor have to be very early. If he notices match even one day late, he can not have 95% percent return, it is allready under 90%. In Sweden and Finland have state-owned tipping companies that offers 85% percent return to horse races. It is lower return,
Congratulations, you finally got something right. most parimutuel betting has a minimum of 15% house edge and is often far bigger.
but bettor can place bets to last minute before race with same conditions.
Many bettors prefer the way we do it as they get a better return by betting early or a choice to bet late when more information that may affect the result is known (eg. the teams have been announced and a start player is injured). That actually makes it fairer, in fixed odds betting the odds will change in situations like that so the returns do vary depending on when you bet.
I just clicked that links and took a screenshot.
A 95% return looks very competitive in that market place even if you ignore that you'll be earning free lottery tickets, golden tickets and reward points and Free BTC bonuses by betting with us.
You still haven't named a parimutuel betting site with a better house edge and are making comparisons of house edges in different betting types. If you don't like parimutuel betting then don't do it.