I don't find that Teslas are bland in the least, imo. They look futuristic. While the interior doesn't have costly, and high-end materials it is clean, functional and to me, zen like. It's a treat getting into a car without scads of buttons.
I disagree about the driving experience as to me the driving experience is excellent. The car is quick, responsive and I do care about the "acceleration party trick". With acceleration boost, a M3 will hit 0 to 60 in 3.5 seconds. That beats most cars on the road in that price point and some supercars. And there are rumors about a M3/MY ludicrous version. I can only surmise Telsa is going to ratchet up the performance from the current performance model 3 and Y. But we'll have to wait and see on that.
When I hear Teslas are bland, and the driving experience lacks, all I think of is the person has never owned or had an extended test drive. As you pointed out, and I have also said, getting in a Tesla and driving it for an hour or two doesn't help someone walk away understanding how you don't need these buttons they are in love with. It takes time, there is a lot that goes into getting the automation to work, but once it is set, it just works.