Can we please stop this childish bickering and get back to the very valid point made by the original poster.
It is at times extremely important to say the words in our tfillos correctly.
The most obvious one is also in birchas hamazon where many people speak about HKBH as BOREINU (=our pit) rather than BORE-EINU.
Another important one (de’orayso!) is the first word in the first parshe of Shema: Ve’ohavto. The stress must be both on the Aleph-kometz and on the Tov-kometz (ve’OhavTO)whilst many people say Ve’oHAVto which makes it past tense.
Chazan Benjamin Muller of Antwerp has on his website several examples of “Milim kesikunom”.