I'd be more worried about the fuel usage that they may not be able to handle especially at full noise in the climb
There's two camps.... those that think that PPL's should start on a C150 and work their way up, and those that can't see a problem with students doing ab-initio in a Cirrus SR22. Unless you have definitive evidence to suggest that the latter is detrimental and more likely to end in disaster, then don't be worried about it.
Just a tip - I believe that your "acquaintance" has already been discussing this journey with other aviators already.
I assume you are talking about PYU and TOZ.