The Pistons are loaded at guard and Jenkins has done nothing but play well. Small sample size and all but Jenkins looks like he has the makings of a good player. Lanier has shown some flashes as well but he's like the 13th/14th guy on this roster when healthy so I don't see any issues there.
The Pistons depth is tremendous, I don't see how even the biggest skeptics would think any differently, my biggest concern is that Cade is a legit star then there's a huge drop off to the #2 guy. I don't see the Pistons having a guy to pick up Cade in clutch situations when games grind to half court basketball in playoff intense games, it's something they struggled with in the Knicks series when they lost just about every 4th quarter and it's something that still hasn't been addressed. Maybe they're hoping Ivey is that guy eventually but he's certainly not there yet. All Championship teams have that guy, Brown on the Celtics, Murray, Jalen Williams, AD, Klay and KD etc. The old Pistons had Dumars and Rip. I don't see that guy on the Pistons now.
Other than that concern, this is a really good team that should be taken seriously but are they a championship contender? I'm not sure I'm ready to pull the trigger on that right now but it's a really good team. People wanted to see them measure up against good teams, you included, and what they've done is crush the Lakers and Knicks and mostly handle the Cavs before they made a late run to make it closer than the score indicated. Are you ready to admit that they're good?