That said, wear can be substantially mitigated by how the tyres are designed and manufactured, particularly the tread compounds. But, long-wearing compounds are generally inversely correlated with grip, so there is a balance to be found there.
There is also the fact that manufactured seem to absolutely not GAF about weight anymore, even on internal-combustion cars, so the ICE-vs-EV weight difference may be narrowing.
But yes, tires for heavier cars are more expensive by themselves, and ceteris paribus, wear faster, so can definitely be a significant expense factor over the 5-10 year terms in this article and discussion.