Suggestion: incur a shared placement cooldown on all stealth ward items

Currently I have a keybinding to both place a ward and smart cast Safeguard as Lee Sin. It will choose whichever ward is available from my Warding totem and my Tracker's knife. However, since using either one doesn't affect the other's 0.5 sec cooldown, it places both at the same time if applicable. I think this is unnecessary, as placing two wards within this time frame is trivial. Control wards should naturally still be usable independently.