QA Battle: PageObjects with (JDI) vs. without (Selenide) typisation

Why typified elements (like Buttosn, Images, Checkboxes, Links) in UI tests is bad practice? Or non typified elements (like SelenideElement for ´em all!) — are rather bad? What are best practices in writing PageObjects and UI tests? Better to have predefind Objects hierarchy or not? Simple way always better or this is the way to waste your time on writing same things again and again.

Only at Heisenbug! First time at a QA conference arena Gladiators battle between forces of Selenide and JDI!