Just because it'll be "made available" doesn't mean any school boards or teachers will actually buy it or waste a significant amount of time on this.
They might or they might not. And Slashdot should have said "marketed" rather than "sold".
In terms of games in school, educational games can be highly useful. For example, games like Mario Teaches Typing.
My dad has used computers for longer than I've been alive and still can't touch type while public schools taught me to do it early (grades 1-3).
I think I played Oregon Trail as well (in 2nd grade?) in school, though I'm not sure what the teacher's reasoning for that was.
Maybe it was a rainy day and we couldn't go out for recess.
I could maybe see a highly modified educational version of Civ being useful for teaching history or as a reward just to keep kids busy on a day when you have a substitute teacher and the faster kids already did the busy work. Probably not but maybe.
And if computers led to unproductive class time for you then really it was your teacher that was at fault.
My High School computer science classes were highly productive because the teacher didn't just send students to the computers and then ignore them.
He kept tabs on students, and I believe, had remote monitoring software so he could tell when students were off task.
And, with the tasks given, there wasn't enough class time to waste much if you wanted to pass.
Kids who are determined not to learn aren't going to learn anyway. They'll sleep through class or doodle or read books or play with their phone or whatever.
I really don't think technology has changed this in any meaningful way and I'm fairly certain that every adult in every generation has wondered "Are schools becoming time waste institutions?".
Yes, they always have been time waste institutions.
Every time there's a PA announcement it interrupts class and wastes time.
Every time teachers have to reteach subjects because classes from previous schools didn't properly prepare students it wastes time.
Standardized test preparation wastes tons of time.
When the teacher is sick or needs a personal day and you have a substitute teacher who gives busy work it wastes time.
All of the little interruptions and deviations from schedule waste time.
But, in my experience, teachers generally do the best they can and schools are, obviously, still worth it.
They certainly do a better job than I think most parents would. Most parents don't even take parenting classes, let alone get education certifications/degrees.