Definitely. I can understand Spielberg's wanting to go more "lighthearted" with Temple given its dark subject matter, but he just continued that lighthearted approach straight into Crusade, where it wasn't necessary. To me, Temple is "pure" Indiana Jones. No relatives, no love triangles (Willie is a fling, not a love-interest), no academia, nothing -- It's just Indy in his element, doing what he does best -- going where he shouldn't. I think, in many ways, Temple is better than all the other films (though Raiders is still #1 in my book).
If there was anything I'd like to have seen less of in Kingdom, it would be Marshall College. Seriously. Indy doesn't get the full hat, coat, and whip together until almost halfway through the movie. It could have gone like this: Area 51 debriefing, cut to the train (like "I need a vacation"), Mutt shows up, Indy and Mutt talk somewhere cool (like a church or theater), and decide to go to Peru. Then the movie continues normally until the temple at Akator. Then, the extra screen time could have been used to explore the temple and its wonders (and dangers). To me, the end felt rushed, while the beginning spent too much time on non-Indy-style stuff. And it was too comical.
I still like Kingdom a lot. I just wish it was more Temple of Doom style. A bit darker, more serious, and more Indy.