Compare a Li-Ion battery from 1992 vs now and you are easily talking 2+x recharge cycles that's huge on it's own. But, you also get lower weight, lower volume, increased power, and lower cost. You can even get a vast array of form factors not just little cylinders.
Granted, their are trade-offs and I would love to have 10x the power. Still, 2x energy by weight and 1/3 the cost
means I have no problem saying batteries have gotten dramatically better.
How about the advancement in steal or gasoline. Batteries are old tech. CPU advancement is very similar to increases in engine horsepower over the first 80 years which steadily doubled up to rockets and then almost completely stalled out.
Saying it's only they are only 10+x as good in the last 25 years overall is a silly standard. Recharge increase * weight decrease * cost decrease. Remember each of them are independently large improvements.
If you see the same increases happen again electric cars in 25 years would have 1,000+ mile range and charge in ~30 seconds.
Your missing the point (ill give you the benefit of the doubt that its in good faith) battery tech advances very slowly but most of the "ambitious" claims for electric cars seem to think that some magic discovery will result in a step change.
I am using its as analogy that anyone familiar with basic technology would understand.
Battery technology is increasing at a steady rate of 8% per year. Everytime you hear of a breakthrough it's at least 10 years away from being production ready.
Just to add 8% a year is doubling every decade. If you hear about something 2x as good that takes 10 years to become mainstream, then that's progress as normal.