I totally agree with you on that. I don't know why Galatasaray had so much difficulty there. Maybe they couldn't get used to playing in that stadium or it is just about warming up for the new season just yet. Zalgiris found really important chances with through and long balls. If it wasn't for Muslera who knows how this match could have finished. Zalgiris defense was quite weak in fact. Galatasaray attackers were so comfortable at getting past defenders on one-on-ones.
But the problem was with finishing skills. Zaniolo wasted some chances as well. However the rematch should be different than this. Galatasaray have a huge advantage in home stadium. I expect a comfortable win there.