I saw parts of this match. Zhenya played well in the third and fourth sets (he got very lucky at the end of it) but not stable like in one game he could make a double fault, then an ace, a fantastic winner and then three unforced errors.
Jarkko was serving well too. I didn't see the fifth set but I guess he was worn out physically
I didn't expect him to do very well at the AO but still if he had won that match he would have got more confidence and had some match practice and maybe would have surprised everyone by getting very far