On my YouTube channel I puting a video that describes working with Yamaha arrangers. If I look at the age of the visitors in the statistics, more than 50% of them are under 45 years of age. This confirms that arrangers are not only played by people in their later years.
The second thing I would like to point out is that those who know the least are always dissatisfied. They are very loud so it just seems like there are a lot of them. I think that the new keyboards are good and that you should not be dissatisfied if some little thing that we are used to is missing.

My first Yamaha PSR60 from '88 year has only 30 Style and one sliding potentiometer of 4 centimeters to determine the tempo. My the guests didn't complain that something was wrong.

https://app.box.com/s/gea37in9xewqbehcmyrhtw78acft52jn