Not sure if you've had any luck on finding out which issues those quotes were translated from, but I can at least vouch for LEVEL as being a very reliable magazine when it comes to what they put on print and things like this. As for the translations posted on GAF, I dunno, but seeing as the user hasn't been banned, I guess he didn't screw up when posting that. LEVEL's editor-in-chief is an absolutely awesome guy by the name of
Tobias Bjarneby, by the way. Worst case scenario, you could probably give contacting him a shot (you have approximate dates based on those NeoGAF posts and stuff, so... it's a start.)
I currently don't have a subscription to LEVEL, so I don't really have a huge pile of their issues, but I'm currently buying all their "Retro" issues (#1 was for the NES, #2 was SNES vol. 1 '90~'93 and #3 should be out right about now, being SNES vol. 2, which I guess has a high probability of at least containing a mention of Chrono Trigger, if not even a good few dedicated pages to it, along with some other big names from the post-93 years of the SNES. I can probably see if I can drop by and give a heads up on that if it does.)