I don't know about the legal part, but I appreciate having the wind reports. I fly the 320 which seems a little less stable (not at all unsafe) in cross winds. The winds at 2,000 AGL or lower may shift especially at specific airports or their may be a heavy in front of you. Nice to know before you get there. Also, if the winds on the airport are above company, than we have to GA. Keep in mind that an airliner is just bigger than a 172 but wind will still give you a push. Also sometimes you are pretty busy and it is easier to hear the wind than read it.