i dont see it that way. if its a properly working TL, and the score is put up and verified, to me, its a record. now if it was only him and his buddies around and no third party person or video then yes, i think its invalid.
sure maybe, heat, cold, elevation or whatever element (i dont know if those actually affect anything im just giving an example) might help/hurt can be a factor, but if thats the case then all world records need to be reattempted in a secured building that guiness or whatever, approves of. sprinting records, audio, eating, jumping, etc etc whatever.
thats just my opinion.
edit: this assumes they were able to hit 180.5 consecutively at some point in time and then were not able to do it later at a different event. if they truly did hit a 180.5 ONLY 1 time (even at the same event), then i will agree with you.