I'm glad you've never had an issue because I've had my fair share of punctures over the years, so other than local riding I now want to carry along the stuff to deal with one. For tubeless it's not much only a mini compressor and plug kit and you can fix a puncture in maybe 20 minutes.
If it has tube type wheels add two inner tubes (which are fairly bulky), tyre irons, plus tools for removing caliper, the large rear nut and axle, which are pretty heavy, so that's a lot more to lug around. Definitely want a centre stand as well and I would plan on at least 1 1/2 hours. Much longer and more difficult in the case of a Moto Guzzi or Harley in fact I'd probably not even bother trying to do a rear on one of those, just hope there's cell signal and call a tilt bed truck.
After my last inner tube flat, which was on an Africa Twin, I made the decision I'm not buying another street bike that needs inner tubes.
Many have commented that the fact Kawasaki didn't reveal the weight says a lot. Wouldn't surprise me if it approached 200kg. But that's still quite manageable for an adventure bike, my CB500X weighs that and it feels way lighter than my Stelvio. Heck by the time people add crash bars, luggage rack, top box and contents, panniers and contents, it'll be 225kg or more.