really? because either way you would do it in an area appropriate for your level.. oh, and look at that, the rift types you need constantly spawn there at random.. They seed the rifts for those events, so the point is moot. and as is stands there is a place to go for each type when there arent events... point is time/APXP wasted on something that occures naturally
perhaps making them a special event rift (not just the element) but with a different internal objective to complete? different rewards? or even bonus PAXP for completing it (perhaps a rare planar gem that gives you X amount of PA points?
getting the rift type you want to do is not an issue, at all... Upgrade what you can summon or remove that starting lure all together and replace with a base point stat set like added elemental dmg or cosmetic colors.. really doesnt matter, just make it useful.