I think I get it. To me, 7000 points is better (of course) than 5000 points if the MFs are the same. Whether one is Gold or Platinum doesn't matter, its a label of sorts.
Gold or platinum matters when you buy the timeshare. If you buy 7.000 points it is per definition platinum points and 5.000 points is per definition gold points. You can’t get 7.000 points as gold points.
The gold and platinum refers to the season which you own in and if you want to book home season then you can only book in platinum season. If you want to stretch your points you need to wait to club seasons opens (usually 9 months out)