EWR-HNL is within the same country so 7500 miles one-way, YUL-HNL is not within the country so it's 10000 miles one-way.
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It's 7500/12500 miles for Economy/Business Class respectively for flights within the same country.
It's 10000/15000 miles for Economy/Business Class respectively for flights between North America and North America
The English version of the page does not indicate the same country chart.
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Also, as mentioned in the *A award thread, the online booking tool does not work for all available flights so it's not unusual not to see all the 'X' and 'I' fare award inventory through the TK website tool. You could alternatively check availability at a website of another *A partner and then call the TK hotline or contact a sales office if you are seeing 'X' and 'I' fare availability.
For the stopover award booking, I am not sure about how it works but it's definitely not bookable online.
Respective thread that similar issues are discussed:
Everything You need to know about booking Star Alliance awards with Miles&Smiles