If we are going to limit tech I think they should reduce the improved precision of chronometers. Lots of records fall simply because of this. It isn't fair that previous record holders lose their record simply due to better measuring technology.
If a more recent record is accurately measured, then that's entirely fair isn't it? It seems like you're implying that an old record was inaccurately measured to be slower than it really was, and then beaten by a more accurately measured modern record?
Inaccuracy goes both ways, less accuracy could just as easily lead to a better time than a worse one.
