I've always thought the X looked like a fat whale. But it's a sleek, fat whale and it's absolutely huge inside. To say it's a "weird-looking car" is mostly just saying that it looks different from other largish SUV's. And when you see what other cars with comparable interior volume look like, it's a huge compliment to say the X looks "weird". Because you have to be really "special" in a uniquely American way to think any of these look better:
2017 SUV - Google Search
(That's just a Google image search for "2017 SUV")
Designer Franz must have dug deep into his talents to make it appear as slim as possible for its size. It really is a breakthrough large car but a "refresh" isn't going to change its nature.
Yeah, the mass-market is key if you want to make an impact and Tesla is almost single-handedly transforming mass market cars from uneconomic junk (gas and oil powered cars) into desireable things of beauty and quality. Tesla is now solidly associated with "premium" and "high-end" so I would argue that refreshing their premium models is pretty low down on the list. It's all about churning out awesome cars in quantity at prices most new car buyers can afford.
That said, it's important to stay ahead of the technology/performance curve and I 100% support the development of the "plaid" platform. But let's not think Tesla needs to get caught up in the traditional games automakers play. A little new alcatera here, a little new chrome accent there, a different crease in the sheet metal or a more menancing looking front grill. It's still the same frickin' car. Tesla is a leader because their cars are superior in profound ways and have clean, timeless styling, not because they keep them "refreshed" and play superficial games with the styling. I find the whole "masculine" styling trend in the last couple of decades to be a sad (but hillarious) reminder of the stage we just went through. The future does not look like that. As Elon Musk might say, "Not cool".