68KiB (worst case) per 5 minutes kinda makes it sound like Google did optimize their site. They could optimize it further still, certainly, but there doesn't se

68KiB (worst case) per 5 minutes kinda makes it sound like Google did optimize their site. They could optimize it further still, certainly, but there doesn't seem to be any real hypocrisy here as you are claiming. The absolute number here is still very firmly in the "very small" category.